Chubb CEO Evan Greenberg’s March 17 shareholder letter called MGAs “a bad bet in the majority of cases” and disclosed plans to automate 85% of underwriting and claims, cut roughly 8,600 positions, and capture 1.5 combined ratio points within four years. Greenberg is betting AI will let Chubb replace the specialty speed and judgment that fueled the MGA market’s 20.2% five-year growth. No insurer has proven that bet at scale.

Evan Greenberg is challenging the economics of the fastest-growing distribution model in P&C insurance. In his March 17 shareholder letter, the Chubb chairman and CEO described MGAs as “a bad bet in the majority of cases,” targeting the intermediation stack that sits between premium dollar and balance sheet. His language was specific: MGAs are “agents with underwriting authority” who bind “insurers, reinsurers, hedge funds, private equity” to risk gathered through brokers offering “cheaper prices and good commissions.” The MGA then uses a fronting carrier “whose purpose is to ‘front’ the risk for a fee,” which passes it to the ultimate risk-taker “through another broker who also takes a commission.”

The math behind the critique is straightforward. In a standard MGA structure, the retail broker takes 10-15% base commission on commercial lines. The wholesale broker, if involved, adds 2-5%. The MGA captures underwriting fees, management fees, and profit commissions. The fronting carrier takes its fee. Contingent commissions of 1-5% layer on top. By the time premium reaches the balance sheet bearing the actual risk, multiple intermediaries have extracted fees from a price the MGA set, not the carrier.

What makes the statement significant is who said it and what it challenges. Chubb wrote $33.3 billion in direct premiums in 2024, making it the eighth-largest U.S. P&C insurer. Greenberg is not commenting from the sideline. He is issuing a verdict from the carrier side of the balance sheet about a market that grew at a 20.2% five-year compound annual growth rate, more than triple the 6.5% rate of the prior five-year period, and now exceeds $114 billion in U.S. direct written premiums. Private equity owns more than 30% of all MGA entities. Among the top 100 U.S. P&C insurers, 43%, including seven of the top ten, have at least one MGA relationship.

Greenberg framed the critique within a broader argument about market discipline. The shareholder letter positioned Chubb’s preference for direct, organic growth and conservative capital deployment against what he characterized as excess capital chasing “inadequate” pricing through proliferating intermediary layers. He is not saying MGAs serve no function. He is saying the economics of delegated authority, as currently structured, transfer pricing risk and intermediation cost to the carrier while concentrating fee income at every other layer.

Whether other large carriers align publicly matters. If this remains a Chubb-specific view, the MGA market prices it as one carrier’s strategic preference. If peers echo it, the cost structure of delegated authority faces a repricing that the MGA market’s growth trajectory does not currently reflect.