Fronting carriers retain 10% to 20% of the gross premium they issue for managing general agents and cede the rest through reinsurance. So the $22.6 billion in MGA premium now running through fronting relationships, a fifth of the $128 billion US MGA channel, sits on balance sheets built to hold almost none of the underlying risk (Conning, July 2026).
Key Takeaways
- $102.6 billion of statutory MGA direct written premium in 2025, up 12%, against roughly 5% growth for the broader US property-casualty industry over the same period.
- Roughly 69% of MGA-dedicated fronting premium sits with the ten largest fronting platforms, so a fifth of a $128 billion channel stands behind fewer than a dozen balance sheets.
- More than 75% of delegated authority agreements in 2025 gave the MGA underwriting authority rather than binding or claims handling alone. The loss pick is set off the risk-bearer's desk.
- $205.3 million is what Markel provisioned at its State National fronting unit when a runoff program's developed losses outran collateral that had been correctly posted against a stale estimate.
A Channel Compounding Twice as Fast as the Industry
Conning's 2026 MGA market study, released July 28, 2026 and covering full-year 2025 results, puts total US managing general agent premium at approximately $128 billion once Lloyd's-placed business and other volume that never appears in a statutory filing is layered on top. The narrower, auditable figure is $102.6 billion of statutory MGA direct written premium, up 12% from 2024, more than double the roughly 5% Conning attributes to the broader industry.
The gap is not new. Conning's prior-year study put the broad estimate at $114.1 billion for 2024, itself a 16% increase over a 2023 baseline just above $102 billion, so the channel has compounded at close to double the industry's rate across three consecutive annual studies (Insurance Business, July 2026).
The count itself is contested, which is its own data point. AM Best's June 2026 report on delegated underwriting authority put 2025 MGA direct premium at $108.7 billion, up 17.8% from $92.3 billion in 2024 (AM Best, June 30, 2026), roughly $6 billion above Conning's statutory figure for the same calendar year. Two well-resourced analytics shops surveying the same regulatory filings a month apart landed $6 billion apart before either firm's adjustments for unreported business were applied.
| Metric | Figure | Source |
|---|---|---|
| Total US MGA premium (2025, incl. Lloyd's and non-statutory business) | $128B | Conning, July 2026 |
| Statutory MGA direct written premium (2025) | $102.6B, up 12% | Conning, July 2026 |
| MGA direct premium, alternate count (2025) | $108.7B, up 17.8% | AM Best, June 2026 |
| Fronting carrier gross premium, Conning definition (2025) | $22.6B, ~20% of channel | Conning, July 2026 |
| Dedicated fronting carrier premium, DBRS definition (2024) | $29.1B, ~33% of MGA-sourced premium | Morningstar DBRS, via Insurance Business |
| Top-10 fronting carrier concentration | ~69% of MGA-dedicated premium | Morningstar DBRS, via Insurance Business |
| Surplus lines stamped premium (2025) | $90.3B, up 7.8% | WSIA, January 2026 |
Conning's $22.6 billion of fronting premium is about 20% of the channel, up from roughly 17% in 2023. Morningstar DBRS, working from a narrower MGA-sourced denominator, counted $29.1 billion of dedicated fronting premium for 2024, about a third of that year's volume, with the ten largest platforms writing roughly 69% of it between them.
The Loss Pick Sits at the MGA, the Paper Sits Elsewhere
A fronting carrier issues admitted or surplus lines paper, satisfies the regulatory and rating requirement that a licensed insurer stand behind the coverage, then cedes the overwhelming majority of premium and risk through quota-share treaties. What it keeps is a fee plus a residual retention of roughly 10% to 20% of gross written premium. That thin retention by design is what lets a small roster of licensed carriers stand behind a channel growing 12% a year.
The pricing actuary usually sits at the MGA rather than at the carrier whose paper is on the policy. More than 75% of delegated authority agreements in 2025 gave the MGA underwriting authority (AM Best, via Reinsurance News). Oversight then has to travel through a bordereau, which has never matched the granularity or timeliness of a carrier's own policy administration system. A fronting carrier backing a dozen programs is running a dozen separate reserving problems through a dozen reporting pipelines, each with its own lag and its own definition of an open claim.
Surplus lines is where that pressure concentrates. Stamping offices reported $90.3 billion of surplus lines premium for 2025, up 7.8%, with item counts up 14.1% (WSIA, January 2026). Non-admitted carriers move rate and form without admitted-market filing delay, which is also the segment where loss experience is newest and least standardized.
Markel put a number on what the resulting gap costs. It booked a $205.3 million provision for expected credit losses at State National in the second quarter of 2026, the unit's first substantial credit loss in a 40-plus-year history (coverage of the disclosure). The collateral existed and was posted correctly. It was pegged to a loss estimate on a primary habitational casualty book that social inflation had since outrun, and total allowance for credit losses on reinsurance recoverables rose to $234.4 million.
CEO Tom Gayner drew the distinction on the July 29 call: "the collateral's fine, just that the losses, and those are actual estimates of the losses, have moved at such a rate that it got ahead of the collateral." The program had been in runoff since 2021, so the shortfall surfaced roughly five years after Markel stopped writing on that paper. A thin nominal retention does not protect a fronting carrier from absorbing the full gap between developed losses and collateral sized to yesterday's loss pick.
Capacity Is Abundant, Which Is the Constraint
Fronting economics work as long as reinsurance and alternative capital keep showing up to take the ceded risk. That capacity is currently plentiful. Fitch Ratings revised its global reinsurance sector outlook from neutral to deteriorating heading into 2026, not because capital is scarce but because too much of it is chasing too little demand (Fitch Ratings, via Captive.com), and expects supply to keep exceeding demand through at least mid-2026.
That is also the condition that makes a cycle turn dangerous for the channel. A carrier retaining 10% to 20% of a program's premium has correspondingly little capital cushion of its own, and its ability to keep a program on the books depends on a reinsurer continuing to want the cession. If catastrophe losses or casualty reserve deterioration push reinsurers to tighten specialty quota-share terms, fronting carriers face non-renewal on programs where they never intended to hold the risk themselves.
Termination does not end the exposure. It leaves runoff liabilities and recoverable disputes on business already bound, which is the State National mechanism again, triggered by a market-wide pullback rather than one program's development. Markel is now top-charging collateral on other, unrelated programs backed by solvent reinsurers, having re-examined current loss trajectories against the assumptions those collateral levels were originally set on.
The measurement problem compounds it. With Conning's $102.6 billion and AM Best's $108.7 billion disagreeing by roughly $6 billion on the same year, a capacity provider benchmarking one program's growth against an industry baseline is working from an estimate rather than a fixed reference point, while roughly 69% of fronted premium sits on fewer than a dozen balance sheets.
Further Reading
- Orion180's IPO Prices a 71% Cession Model – a live issuer case where the gross loss ratio, retained underwriting result and services margin point in different directions.
- MGA Premiums Hit $108.7B as AM Best Flags Capacity Scrutiny – the capacity-side scrutiny driving MGAs toward more transparent loss reporting.
- Markel's $205M State National Loss Exposes a Fronting Collateral Gap – the concentration risk this article describes, materialized in a single program.
- MGA Submission-Intake Automation and the Data-Lineage Problem – how faster MGA underwriting compounds the reporting-lag issue fronting carriers already face.
- The P&C Soft Market Reserve Adequacy Playbook – broader reserving discipline questions as the market cycle turns, the same dynamic fronting collateral triggers need to track.
Sources
- Conning, "Managing General Agents" 2026 market study, July 28, 2026
- Insurance Business, "US MGA market swells to $128 billion as specialization reshapes distribution," July 2026
- AM Best, "Best's Market Segment Report: Managing General Agents Adapt to Changing Demands and Added Scrutiny," June 30, 2026
- Reinsurance News, "AM Best sees shift towards underwriting discipline as delegated authority market expands," July 2026
- Insurance Business, "MGA boom raises operational and credit exposure for US fronting insurers," 2026, citing Morningstar DBRS
- The Insurer, "WSIA: Stamping office surplus lines premium up 8% in 2025 to $90.3 billion," January 30, 2026
- Fitch Ratings, via Captive.com, "Reinsurance Sector Outlook Turns Negative Amid Rising Competition," September 2025
- Markel Group, "Markel Group Reports 2026 Second Quarter and Six Months Results," July 29, 2026