I work in the industry but everyone else pretty much nailed it. Over the last 15 years there were many, non traditionally aviation insurance companies that came into the marketplace. They saw the premiums in the aviation sector and thought it would be awesome to get some of that. Well, they slashed premiums, gobbled up the market share. But they didn’t realize that the premium is high because so are the claims. So money was flying through the door, all is well. But then the claims started to catch up to them. Big loses, but even the small ones. A new Cessna 172 costs damn near Half a million dollars. If a student balls it up on the first solo, a premium of say, $1000/year for that would take 500 years for the insurance company to recoup on that account. Those start to add up, then the 5 fatal when someone crashes their turboprop, or a tour helo goes in, those really hammer it home. The traditional aviation insurers that have been around from the beginning knew this, and over the last few years, the new companies found it out, and they’re bailing from the industry. Prices are correcting to the natural state.