AmTrust agrees to buy AmeriHealth Casualty for $90M

• A subsidiary of Independence Health Group, AmeriHealth Casualty Insurance generated gross written premium of about $116M last year. The all-cash deal is expected to close before year-end, pending regulatory approval.
• The purchase will expand AmTrust's (NASDAQ:AFSI) presence as one of the largest workers' comp carriers in PA and NJ, says CEO Barry Zyskind.