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Operator
Good day, and welcome to Selective Insurance Group's fourth-quarter 2025 earnings call. (Operator Instructions) Please be advised that today's conference is being recorded. I would now like to turn the conference over to Brad Wilson, Senior Vice President, Investor Relations and Treasurer. Please go ahead.
Brad Wilson - Senior Vice President - Investor Relations and Treasurer
Good morning. Thank you for joining Selective's fourth quarter and full year 2025 earnings conference call. Yesterday, we posted our earnings press release, financial supplement and investor presentation on selective.com Investors section.
A replay of the webcast will be available there shortly after this call. John Marchioni, our Chairman of the Board, President and Chief Executive Officer; and Patrick Brennan, Executive Vice President and Chief Financial Officer.
We'll discuss results and take your questions. We will reference non-GAAP measures that insurance and investment professionals use to evaluate operational and financial performance.
These non-GAAP measures include operating income, operating return on common equity and adjusted book value per common share. The financial supplements on our website include GAAP reconciliations to any referenced non-GAAP financial measures.
We will also make statements and projections about our future performance. These are forward-looking statements under the Private Securities Litigation Reform Act of 1995, not guarantees of future performance. These statements are subject to risks and uncertainties that we disclosed in our annual, quarterly and current reports filed with the SEC. We undertake no obligation to update or revise any forward-looking statements.
Now I'll turn the call over to John.
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Thanks, Brad, and good morning. We are well positioned to build on recent momentum. In 2025, we delivered an ROE of 14.4% and an operating ROE of 14.2%. This exceeds our 10-year average operating ROE of 12.1% and our five-year average of 12.5%. We are proud of our long-term track record and are taking clear steps to drive future margin improvement.
In 2025, we grew book value per share by 18% and returned $182 million to shareholders through our common dividends and share repurchases at attractive valuations. With our strong capital position, we can deploy capital in several ways that are accretive to long-term value, including continued investments to grow and diversify our business along with opportunistic share repurchases.
We have a strong foundation with opportunities to drive improvement across our organization. We delivered a 93.8% combined ratio in the quarter, reducing our full year combined ratio to 97.2 just outside the 96 to 97 guidance we provided at the beginning of the year and at the low end of the 97 to 98 guidance provided last quarter.
Net premiums written growth was 5% for the year as we executed deliberate actions to improve underwriting profitability. This remains our primary focus. However, we are also executing strategies to support future growth opportunities, including expanding our geographic footprint and broadening E&S distribution capabilities with retail access. We believe we have the capabilities and strategy to further diversify our premium and outpace industry growth in coming years.
In the fourth quarter, favorable workers' compensation development offset unfavorable prior year emergence in the commercial and personal auto lines and E&S casualty. There are also several smaller adjustments across multiple lines of business, including umbrella, which was driven by auto.
In 2024 and 2025, we took meaningful actions to strengthen reserves. Our picks for older accident years have held up well, and our actions have been increasingly weighted to more recent accident years. We are comfortable with our overall carried reserve position.
We firmly believe our disciplined approach responds properly and appropriately to emerging trends and ensures pricing targets keep pace with an evolving external environment, even though it can create short-term volatility.
We will stick to our process continuing to assess emerging information, considering risk factors and booking our best reserve estimates each quarter. We expected 2025 accident year margins to improve for commercial automobile as we have earned double-digit rate increases over multiple years that exceeded our assumed loss trend of roughly 8%.
As 2025 progressed, we ultimately increased commercial auto casualty loss costs by nearly 6 points. We also increased our expected severity trend for commercial auto liability to approximately 10%. This assumption is reflected in our booked results and incorporated into our 2026 guidance. In total, we strengthened commercial auto reserves by approximately $190 million in 2025. The majority is attributable to the 2024 and 2025 accident years with 2025, representing the largest share.
We are addressing commercial auto with both underwriting and claims actions. For example, we have implemented tighter underwriting guidelines fleet exposures, supported by state-specific tactics and focused our commercial auto telematics rollout in specific segments and states.
In general liability, we discussed our actions to manage limits in challenging jurisdictions and trim underperforming classes. We're also prioritizing new business in better performing segments and have strengthened new business pricing.
Standard Commercial Lines is our largest segment and our earnings engine. We have the sophisticated pricing and risk selection tools in the hands of our talented underwriters that are necessary for taking granular action across the portfolio.
We are improving it by achieving stronger rate and retention differentiation based on expected profitability while continuing to focus on overall rate adequacy. This is not new, but we expect the amount of differentiation to increase.
We are leveraging our tools, granular insights and differentiated operating model to drive higher renewal retention on our best performing business and meaningfully lower retention on our poorer-performing business through appropriate rating actions. While overall rate increases could moderate in the short term, we expect these mix improvement actions will deliver improved profitability.
Our guidance reflects the benefits we expect in 2026 from the various actions we have taken and our multiyear plan points to continued margin improvement in 2027.
Now I'll turn the call over to Patrick.
Patrick Brennan - Chief Financial Officer, Executive Vice President
Thanks, John, and good morning, everyone. For the quarter, fully diluted EPS was $2.52, up 66% from a year ago. Non-GAAP operating EPS was $2.57, up 59%. Our return on equity was 18.3%, and our non-GAAP operating return on equity was 18.7%, reflecting continued strong investment performance. The GAAP combined ratio was 93.8% a 4.7 point improvement from fourth quarter of 2024, mainly because this quarter had no net prior year reserve development.
For the quarter, the overall underlying combined ratio was 92.1% a point and a half higher than the 90.6% a year ago. The increase is attributable to the reserving actions we took to address the 2025 accident year, primarily in commercial auto.
This quarter's Standard Commercial Lines combined ratio was 92.9% and which included 1.6 points of favorable prior year casualty development and 3.2 points of higher current year casualty loss costs. As John noted, the current environment demands strong underwriting and pricing discipline. Standard Commercial Lines premium growth in the quarter was 5%, driven by renewal pure price increase of 7.5% or 8.5% excluding workers' compensation.
General liability price increased by 9.8% and commercial auto pricing increased by 8.6%. While there was some deceleration in commercial auto pricing for physical damage, liability price increases continue to exceed 10%. For property, renewal premium change was 12.2%, including 4 points of exposure growth. Retention for the quarter was 82%, stable with recent periods, but down 3 points from a year ago.
Excess and Surplus Lines premium grew 4% this quarter, with average renewal pure price increases of 7.8%. We continue to push higher in E&S casualty based on our view of general liability loss trends. The E&S combined ratio for the quarter was 93.1% and a very strong 87.8% for the year.
Turning to Personal Lines. The combined ratio for the quarter was 103%, up 91.7% in the first quarter 2024. There were two reasons for the deterioration catastrophe losses, which were 6.2 points higher this quarter and current year casualty loss costs, which increased by 8.1 points.
Current year adjustments were driven by New Jersey Personal Auto. For the year, the Personal Lines combined ratio was 100.6%, improved from 109.3% in 2024. Results are even more favorable for the portfolio outside of New Jersey, and we are positioned for profitable growth in those states.
For the quarter, Personal Lines net premiums written declined 8%, with target business up 5% -- all our new business was in our target mass affluent market. Renewal pure price for the quarter was 15.1%. Across all our segments, the combined ratio was 97.2% in 2025, a significant improvement from 2024s 103%, primarily because of lower prior year casualty reserve development and catastrophe losses. Last quarter, we discussed our third-party claims review, which was ongoing at that time. The review is now complete, and the findings were consistent with what we had previously discussed.
Turning to investments. Fourth quarter after-tax net investment income was $114 million, up 17% from a year ago and generated 13 points of return on equity. Our investment portfolio remains conservatively positioned and our investment strategy is consistent with average credit quality of A+ and a duration of 4.1 years. We expect the portfolio strong embedded book yield to continue to provide a durable source of future investment income even if interest rates decline.
We successfully renewed our property catastrophe reinsurance program effective January 1. Our retention remains $100 million, and we increased our coverage exhaustion point to $1.5 billion from $1.4 billion. Property market conditions are attractive, and we completed the renewal with meaningful risk-adjusted pricing decreases in improved terms and conditions.
We continue to supplement our main tower with a personal lines only buy-down layer. Our peak peril US hurricane, is well within our risk tolerance and 5% of GAAP equity for a one in 250-year net probable maximum loss.
Our capital management strategies continue to prioritize profitable growth within our insurance business and aim to return 20% to 25% of our earnings to shareholders through dividends. We also expect to opportunistically repurchase shares.
These actions reflect our commitment to delivering long-term value to shareholders. During the quarter, we repurchased $30 million of common stock bringing our total repurchases for the year to $86 million. We believe these repurchases are completed at attractive valuations. At year-end, $170 million remained on our authorization.
Book value per share increased 18%, and we reported $3.6 billion of both GAAP equity and statutory surplus. We ended the year with a strong capital position, and we are proud that A.M. Best recently affirmed our A+ financial strength rating. For 2026, we expect a GAAP combined ratio between 96.5% and 97.5%. Our guidance assumes 6 points of catastrophe losses.
We do not make assumptions about future reserve development as we book our best estimate each quarter. We expect after-tax net investment income to be $465 million. This is up 10% from 2025, reflecting growth in our invested assets.
Our guidance includes an overall effective tax rate of approximately 21.5%. Weighted average shares are estimated to be approximately $61 million on a fully diluted basis without assumptions about share repurchases under our existing authorization.
As a reminder, our first quarter underlying combined ratios tend to be higher than the rest of the year due to normal seasonality. For financial modeling purposes, this has historically been most relevant to noncatastrophe pay losses. Corporate expenses also tend to be higher in the first quarter due to holding company expenses related to stock compensation.
Now I'll turn the call back to John.
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Thanks, Patrick. Our 2026 guidance implies an underlying combined ratio in the 90.5% to 91.5% range compared to the 91.8% we reported in 2025. Our guidance does not provide segment level combined ratios. However, directionally, we expect underlying combined ratio improvement in personal lines and commercial lines and continuing strong performance in E&S. Our 2026 guidance considers reserve reactions for recent accident years and embeds an overall expected loss trend of approximately 7.5%, up from the 7% we assumed a year ago.
Our loss trend assumptions are 3.5% per property and 9% for casualty. The casualty trend will be closer to 10%, excluding workers' compensation. We expect our 2026 expense ratio to increase by about 0.5 point as we make strategic technology investments to support scale, enhance decision-making and improve operational efficiency. With expected strong investment income, our 2026 guidance implies an operating ROE in the 14% range.
Before turning to your questions, I want to remind everyone that Selective is celebrating its 100th anniversary in 2026. We are proud of our history, the work of our employees, and the value we deliver to our policyholders, distribution partners and shareholders.
We are excited to build on our legacy of success. To drive this, we remain focused on a set of key priorities across the company including relentlessly improving on the fundamentals across risk selection, individual policy pricing and claim outcomes diversifying revenue and income within and across our three insurance segments, and further leveraging our use of data, analytics and technology, including artificial intelligence to drive operational efficiency, improved underwriting and claim outcomes.
I'll now ask the operator to begin our question-and-answer session.
Operator
(Operator Instructions)
Michael Phillips, Oppenheimer.
Michael Phillips - Equity Analyst
Thank you. Good morning. John, my first question is around your last comment here on the guidance. As you said, the core underlying combined, it kind of implies a bit of improvement from last year in 2025. And you said you kind of expect commercial to improve, personal to improve and strong from E&S. I guess if we focus on commercial for a second. There, you're seeing price deceleration, it seems like in line with peers, elevated casualty loss picks that kind of start to pick up in 3Q and 4Q.
And then you still got some noise on PYD and commercial auto and GL. I guess given all that, can you just talk about the confidence you have in maintaining or maybe even improving the commercial line margins from here?
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah. Thanks, Mike. And again, as I mentioned, we provide very detailed guidance when we stop sort of providing individual combined ratio guidance by segment. But as you indicated, we did provide some directional guidance, and I think that's the focus of your question.
I think without question, we have continued to take rate on the casualty lines of business and where you've seen the most significant deceleration, albeit not as substantial as maybe reported for larger accounts is on the property side.
So we expect to see continued strong pricing on the casualty side within auto, casualty -- auto liability, commercial auto liability and in general liability. The other thing I'll point to is, and this has been ongoing for the last couple of years, and this was referenced in my prepared comments as we see meaningful opportunity by further leveraging the tools we have from a pricing and a risk selection perspective, to drive meaningful mix of business improvement on both the renewal portfolio and the new business selection process and that will also result in some of the benefits we're talking about here.
So with regard to your overall question around confidence, as we are based on their confidence in our process, we're confident in the guidance we're providing you. And to your point, on an overall basis, that underlying combined ratio improvement of 80 basis points, if you just focus on the midpoint of our underlying combined ratio, we think, is reasonable. And don't get there's about a 50 basis point increase in the expense ratio. So the underlying loss ratio improvement is a little bit more than that.
Michael Phillips - Equity Analyst
Yeah. Okay. Good. I appreciate that. That's helpful. I guess second question, we've talked about this before briefly, but maybe just to refresh here. A lot of your comments on reserves have been from higher paid severities in the recent accident years for your casualty business.
And I guess I wonder what that means for GL and commercial auto, specifically case reserves for those same recent accident years. What I mean is, I think some companies, there's a disconnect between paid activity and how they set the initial case reserves because a lot of that's done automatically. And there's often a big disconnect there when they see higher paid.
I don't think that's the case for you, but I guess what about yours. We're clearly going to be looking at that for a detail in your case reserves for those two lines in a couple of months with that data. But can you talk about how any change that might be taking place in your initial case reserves given the higher paid activity?
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah. I would say -- and I know we pointed to paid, I'd say that we've seen movement from an incurred basis, similar to what we've seen on the paid side. And I think that's reflective of your point relative to case reserves and movement in case reserves.
I'll also go back to the point made last quarter where we talked about the outside studies we had done on both the actuarial reserving and planning process as well as the claim process, and that was our way of doing an assessment with regard to any -- understanding any change in underlying case reserve adequacy, either favorable or unfavorable. And I think as we mentioned, we're pleased with the results of those surveys on both sides.
And I think indicated that while there's opportunities for us to continue to drive some improvements in our claims organization, very strong performance there.
So -- but we look at both. We look at several -- we're looking at paid in current methods. We're projecting that to ultimate -- that continues to be our process, and we think it gives us the best insight into where most -- more recent prior accident years are and more importantly, where run rate profitability is.
Michael Phillips - Equity Analyst
Okay, wonderful, John, thank you for your help. Thank you.
Operator
Paul Newsome, Piper Sandler.
Jon Paul Newsome - Analyst
Good morning. Thanks for the call. We're Hoping you could give us just a little bit more detail on the reserve development of personalized business and how it might sort of fundamentally differ from what you had in the commercial lines business size, geography, anything that would suggest other than just sort of differences -- similarity and delaying the overall sort of liabilities claim.
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah. I guess, Paul, thank you for the question. And we've mentioned this both in prior quarter and this quarter. In personal auto, the prior year development is driven entirely by the state of New Jersey. And in personal auto, New Jersey represents about 30% of our portfolio.
So all of that is New Jersey and all of it -- pretty much all of it is the 2024 accident year. And that was the case in the Q4 and also the prior quarter.
So for the full year number when you look at that and the impact on personal lines overall combined ratio that prior development was about 3.7 points in total. All of that is New Jersey. And I think that's important. And I know Patrick referenced this in his prepared comments as well.
I think when you get the improvement that we see in personal lines and look at that 100.6% combined ratio recognize that, that almost 4-point impact of PYD is entirely New Jersey, and it really masks the improvement we've seen and the strong run rate performance we're seeing in that personal lines book outside of New Jersey.
And we're also taking pretty significant actions to continue to manage that New Jersey portfolio, so it becomes less of an impact going forward. So that's what I would point to. I think that's an important point to make. And it's a very different environment there.
Now we have made comments in prior calls, and I'll kind of reinforce them here. Some of the New Jersey dynamics that we see in personal lines also apply to commercial lines. And New Jersey, has always been a higher litigation rate state for both personal and commercial.
And we've seen over the last few years through legislative change, a number of what I'll call sort of pro plaintiffs for legislative enactments that I think have made it more fertile ground for litigation of use and social inflation.
So legal changes that require pre-suit disclosure policy limits, increasing private passenger auto minimum limits, increasing mandatory commercial auto limits to $1.5 million for autos over 26,000 pounds, which is a small portion of our book.
But I think it's one of those areas that attracts more attorney involvement and then a couple of years ago, a lowering of the bad face standard for uninsured motorist claims.
I think all of those things have driven up the interest of the is far in that state and have driven up a more aggressive litigation environment, and I think loss trends have reflected that. And unfortunately, on the personal line side, the regulatory environment hasn't been as conducive to rate adjustments to make up for those costs -- so that's an ongoing challenge. I think you see it in fast track data on an industry basis for personal lines. And I think a lot of those same dynamics impact the commercial auto line for that state as well.
Jon Paul Newsome - Analyst
Okay. Yes, it sounds like all the layers are moving back to New Jersey from Florida. My second question is -- I wanted to ask about sort of operating leverage from a capital perspective, historically, because of your -- the firm's underwriting consistency, it has been able to run a little bit higher premiums to surplus ratios given some of its peers. And I just want to know if there's anything that we should think about in terms of that change given capital buybacks and such today and when stock is in that interest. But I think that was the question.
But if you could talk to that, that would be interesting to.
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah, sure. So there's no change in how we think about our target operating leverage. You've heard us talk about operating in a range of 1.35x to 1.55x -- and over the last several years, we've been in that range where the couple of years, we're at the upper end of the range, a couple of years at the bottom end of that range.
If you look back historically, that operating leverage did tend to be a little bit higher than the peer group. But I would say if you look over the last decade or so, the peer group has generally moved a lot closer to where we operate from an operating leverage perspective.
So I just -- it's not that much of a differentiating factor at this point. But in terms of how we think about target operating leverage, that range continues to serve us well.
Patrick Brennan - Chief Financial Officer, Executive Vice President
Yeah. And I think I would just add that operating leverage is one of many capital metrics that we use to evaluate where we are relative to what we think we need to run the business, and we continue to on a regular basis, look at our internal models and calibrate those versus external models as well to ensure that we have sufficient capital to absorb any unvested consequences, but still operate with an efficient balance sheet.
Jon Paul Newsome - Analyst
Great I appreciate your help. Thank you.
Operator
Jing Lee, KBW.
Jing Li - Analyst
Good morning. Thank you for taking my question. I'll stay on reserves for SEC. Just curious about schedule reserve can unpack some drivers behind the reserve charge? Is it concentrated in specific accident year geography coverage ties similar to the commercial lines. That's mostly from Commercial Auto. And how does this impact your appetite for growing the E&S platform going forward?
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah. Thank you for the question. Just let me make sure we're talking about this in the proper context, which is our full year E&S combined ratio was at 87.8%. So strong profitability the reserve action we took in E&S in the quarter, and we hadn't taken any on a year-to-date basis was $10 million. So de minimis in total but spread across the 2020 through 2023 accident year.
So four accident years and $10 million are very de minimis movements on an annual basis for each of those accident years. So there's nothing noteworthy there. We disclosed a great deal of detail with regard to reserve adjustments. We true up lines at the end of the year, and there's nothing there that's noteworthy from an accident year or a geography or a segment perspective.
And again, this is all in the context of extremely strong operating margins in E&S over the last few years, and we expect that to continue going forward.
Jing Li - Analyst
Got it. That's very helpful. My second question is on kind of the -- your job expansion. You've been investing a lot on geographic expansion and new state throughout for several years. Are these newer territories as the mature -- what contribution are they making to the top line growth versus the margin profile?
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah. The top line growth, if you just look at it on average over the last several years, and remember, we started geo expansion again in earnest in the 2017 to 2018 kind of time frame. And I would say, over that time as states have come on and some of those states have assured while new states are coming on, it's contributed between 1 and 2 points of growth overall on average over that time period. I would expect that to continue to temper going forward. But that's what the contribution has been to this point.
With regard to profitability, as we've talked about in the past, for the first few years in a new state, we planned and incorporating to our planning guidance and expected loss ratios that newer states run at worse profitability than our legacy book runs.
But I would say our experience over the last eight or so years has been that those states have consistently performed within our expectations and have improved as they've matured. So there's nothing we're seeing there that is a different profitability profile than what we talk about in terms of the overall portfolio we have.
Jing Li - Analyst
Got it. Thank you. I appreciate the help.
Operator
Rowland Mayor, RBC Capital Markets.
Rowland Mayor - Analyst
Good morning and I guess congrats on 100 years. Even I know you all weren't there the whole time. I wanted to ask just on the workers' comp releases and what accident years those pertain to?
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah, sure. So there are two big drivers, and I want to hit the -- I think it's an important question. First thing is, as you know, we do our annual tail study in the fourth quarter every year for workers' comp. And just without getting too far into the tail study, that's effectively an evaluation of the development with Ultimate for accident years and maturities that fall outside of your traditional reserving triangles, which cover 20 years. And you're really going through that analysis to get an accurate reserving picture for those long-term chronic and permanent injuries that may remain open for decades.
And then you apply that development assumption to all accident years as your long-term view of medical inflation, that drove about half of the favorable emergence we recognized in the quarter. And I think you want to put that in context, which is because we're talking about decades of accident years, the individual impact by any given accident year for that is de minimis. It's in the, call it, roughly 0.5 point per year over that extended period of time. So that represented half of it.
The balance of the favorable booking action in the quarter was from accident years 2022 and prior. So I think that's the other driver. So actually the years 2022 and prior.
As we talked about throughout the year, we continue to see better-than-expected frequency emergence in the workers' comp line. That held up through the full year. But as has been our practice, we won't react that quickly to a long-term line from a frequency perspective. So the actions were '22 and prior and the workers' comp tail study.
Rowland Mayor - Analyst
That's helpful. And then I wanted to ask on the GL charge. I know this year, I think it's all been umbrella, but in '24, I think a lot of it was primary GL. Was there any movement on the 2024 charges this year?
John Marchioni - Chairman of the Board, President, Chief Executive Officer
On the 2024 chart no. So just to reinforce the point you started with, which is -- for the quarter and the full year, the GL adjustments we made in books were predominantly umbrella, and that umbrella is predominantly driven by the auto lines of business. The core GL lines and our book levels for the core GL lines in the priors have held up well throughout the year.
Rowland Mayor - Analyst
That's great. And then I wanted to just see if I could speak one more in. You talked about the 14% ROE for next year in the guidance. And I think this year, the NII was about 13%. Given all the movement, like do you have an idea of what the long-term target should be at this and straight level in your portfolio?
John Marchioni - Chairman of the Board, President, Chief Executive Officer
With regard to investments in particular?
Rowland Mayor - Analyst
No, just for the overall consolidated ROE, there's a lot of movement in the underwriting margins right now. And I just wondered in a few years from now, is there a goal you're aiming for?
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah. So I would say that we set our ROE target to be something that we expect to achieve on a consistent basis over time. And we set that target on the basis of what we believe to be sort of long-term rates of return on the investment portfolio. To your point, we're generally returning -- think about a 4% after-tax book yield on the portfolio currently is above where you'd expect it to be on a long-term basis.
And if you look over time, I think something closer to 3% after tax is a more reasonable long-term assumption. And with our invested asset leverage at just over 3 times, I think something in the neighborhood of a 9% to 9.5% after tax or ROE impact for investments. And that's why we maintain our 95% combined ratio target because that, over time, will position us to meet or exceed that 12% ROE target. That's how we think about it.
That's why we keep that target where it is because we recognize that these returns, while there is durability here, and I do want to stress that point, you heard it in the guidance that Patrick outlined, there is durability in these book yields.
If you look at our duration and we feel good about that over the next few years. But we also know that over the long term, you can expect that to be the case.
Patrick Brennan - Chief Financial Officer, Executive Vice President
And I would say the 12% target is intended to provide spread over what we estimate to be our cost of capital. We want to make sure that we're earning our economic freight. So that's how we ground ourselves in that bogey.
Rowland Mayor - Analyst
Thank you. Bye.
Operator
Michael Zaremski, BMO Capital Markets.
Michael Zaremski - Analyst
Hey, great, good morning. Thanks for the color on workers' comp. Clearly, a great result this quarter, too. And then in the past, you -- maybe it was a bit of a head sake, but there were some indications that loss trend might have been getting a bit worse. But just curious on the underlying loss ratio on comp. I think it still appears elevated -- how are you -- how does that line rolling up into the combined ratio guide for next year?That's my first question.
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah. I guess -- we don't provide individual line guidance. You'll see our reported results, and we give you a lot of detail on the reported results by line. So you'll see that in Q1. But as we talked about in prior years, generally speaking, we've maintained our severity assumptions, our medical severity assumptions and have seen a little bit of upward pressure that we've talked about with regard to utilization and maybe seeing your average medical severities come in a little bit higher than they had been running over the last few years.
But we've also continued to see improving frequency trends, and that's held up through 2025. So you have to put those pieces together alongside of the rate level that continues to be slightly negative, and that will all come through in how we set our planned loss ratios for that line of business. And I think you'll see something similar to what you saw in 2025.
Michael Zaremski - Analyst
Okay. That is helpful. My follow-up is back on the expense ratio commentary and initiatives there. It's been interesting, I guess, over the last couple of quarters, there's been a few companies that have come out with huge expense -- very large expense ratio improvement guides based on implementing technology and AI, et cetera. And then on the other hand, there's other companies in your camp that are kind of guiding to upward expense ratio movement to make further investments.
So I guess I'm just curious, would you say that this is like -- is this kind of a onetime step up to the kind of broaden selective capabilities having to do with the newer technologies? Or is this more of a kind of a all the work you've been doing on improving the reserving and claims processes, et cetera.
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah. No, it's a great question. And I think we've seen and heard a lot of the same commentary. And clearly, we're in the camp that the investment in technology and our investment in technology has continued to ramp up as a percentage of premium over the last several years, and we expect that to continue.
And I think when you look at it at the highest level, we expect the investment in technology to continue to rise as a percentage of premium and the cost of labor, the percentage of premium that goes to labor will be coming down over time as a result of gaining the benefit of these technology investments.
We're not setting aggressive targets but we think there are real opportunities here, not just the drug operational efficiency, but to improve decision-making and improved outcomes across underwriting, pricing, decision-making and claims outcomes. And that's what we're pointing to in terms of the increase in our strategic investment dollars.
So if you look over the last three years, our split strategic investment dollars in technology relative to running our technology infrastructure, keeping the lights on, it's about a 50-50 split, which is a pretty significant improvement.
So there's more money going into the strategic investments and we more than doubled that over the last three years and have been able to manage the overall impact on the combined ratio or the expense ratio, and that will be our focus going forward.
So it's not a step-up per se, but I think we expect technology investment as a percentage of premiums to continue to go higher and then there will be offsetting benefits in other cost aspects and loss ratio benefit as well to be realized.
Michael Zaremski - Analyst
Understood. That's helpful. And maybe sneak one last one in, and you might have touched on some of this in the prepared remarks. But should we be thinking about the retention ratio staying around current levels based on kind of the indications of kind of making sure to continue to turn out the less profitable business in a decelerating rate environment? Or is this -- or anything that continues out on the retention ratio just be helpful.
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah, sure. And again, that's not an area we guide to -- we don't do the growth or retention. But I think generally speaking, to your point, our focus is on the granularity of our execution of our pricing strategy. And we believe that by doing that, we should be able to deliver relatively stable retentions, but there's an assumption around market behavior that I think is a little bit tougher to forecast. And I think depending on market behavior with regard to pricing discipline in the casualty lines, that will ultimately influence what that -- where that retention settles.
But our focus, to your point, is on that granularity of execution, which we think does allow us to maintain more stable retentions.
Michael Zaremski - Analyst
Thank you.
Operator
Daniel Lee, Morgan Stanley.
Daniel Lee - Analyst
Hi, good morning. Thank you for taking my questions and squeezing in. I kind of want to switch gears and kind of ask about -- my first question would be on the E&S segment. I know your growth has been strong for E&S in the past prior years. But starting kind of seems like it's slowing down. Kind of wanted to get your thoughts on how -- what you're expecting for E&S overall and your growth aspirations for the E&S segment?
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Sure. That's a business we really like. It's a business that we would expect to continue to become a bigger part of our overall premium in the coming years, but it's also a business where it's important that you maintain consistent discipline from a pricing and underwriting perspective over time.
I think there's been a fair amount of industry commentary around some more aggressive pricing behavior there, not just on the property side, but I think leading into the casualty side as well. and we're going to maintain our discipline there. And that might create some downward pressure on growth in the near term.
But in the longer term, I would put that segment in the category of business that we like and we expect to be able to continue to grow as a percentage of our overall premium. We've got meaningful potential to expand our capabilities there from a product and an underwriting perspective, but also having recently opened up retail access channel for our strong retail partnerships on the standard line side. We think that's also a real growth avenue for us in the coming years.
Daniel Lee - Analyst
Awesome. So my follow-up, I guess, I wanted to also ask about so E&S casualty, just loss cost trends overall, I kind of wanted to maybe ask just the differences between commercial standard commercial loss cost trends versus E&S casualty and what are some nuances there that we should be thinking about for E&S casualty in terms of loss.
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Yeah. I would say probably the biggest difference is the E&S that you see it in lower retention ratios, it does tend to be a more transient business, which allows you to turn over the portfolio more quickly and make more significant mix improvements.
As we pointed to over the last couple of years as a result of those actions, we've seen a much more meaningful frequency decline in E&S than we have in standard GL. We've seen frequency benefits in our standard lines, but I think it's been a bigger frequency benefit that we've been able to realize in E&S.
But with regard to severity trends, and social inflation, I would say the general dynamics are consistent and what we see them consistent across both admitted and nonadmitted business, I would say the bigger difference that we've seen has been more so on the frequency side.
And we had also -- and we pointed to this in prior comments, we had been embedding higher severity increase assumptions into our expected loss ratios in part because of the more transient nature of E&S casualty portfolios.
Operator
There are no further questions at this time. I'd like to turn the call back over to John for closing remarks.
John Marchioni - Chairman of the Board, President, Chief Executive Officer
Great. Well, thank you all for joining us. We always appreciate the engagement. And if you have any additional questions, please feel free to follow up with Brad.
Operator
Thank you for your participation. You may now disconnect. Everyone, have a great day.