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General aviation insurance soft market faces structural underwriting shifts
WTW says experienced underwriters are migrating to new managing general agents, while delegated authority growth and longer claim timelines are complicating pricing and risk selection.
General aviation insurance still appears “soft” on the surface, with abundant capacity and rate declines across most segments for about two years, but WTW’s latest aviation market outlook describes deeper structural changes that are making the market harder to read.
According to Insurance Business, WTW points to the migration of experienced underwriters into newly formed managing general agents, noting that pricing discipline often follows underwriters who move between established insurers. Underwriters joining MGA platforms may instead face early pressure to build premium volume and quickly establish market share, which can lead to more aggressive pricing and a broader risk appetite.
The report also flags the continued growth of delegated authority structures, including lineslips and binding authorities, where large intermediaries route significant volumes through facilities rather than the open market. That trend can reduce the pool of risks available to direct insurers, putting simultaneous pressure on established carriers trying to maintain premium income.
Other market signals cited include continued attritional losses and lengthening claim timelines, plus uneven distribution of the soft market across account types, such as Lockton launching a dedicated US aviation practice. WTW also warns brokers using long-term agreements for budget certainty that execution has become inconsistent, with some insurers reluctant to honor pre-set rate trajectories when renewals arrive.