Top 10 Most Profitable Insurance Stocks: ESGR, KINS, RNR, CHIO, MRH, VR, GLRE, AWH, PRA, FSR (May 22, 2010)

Below are the top 10 most profitable Insurance stocks for the last 12 months. One Chinese company (CHIO) is on the list.

Enstar Group Ltd. (NASDAQ:ESGR) is the 1st most profitable stock in this segment of the market. Its net profit margin was 174.03% for the last 12 months. Its operating profit margin was 201.17% for the same period. Kingstone Companies, Inc. (NASDAQ:KINS) is the 2nd most profitable stock in this segment of the market. Its net profit margin was 66.35% for the last 12 months. Its operating profit margin was -2.85% for the same period. RenaissanceRe Holdings Ltd. (NYSE:RNR) is the 3rd most profitable stock in this segment of the market. Its net profit margin was 63.58% for the last 12 months. Its operating profit margin was 63.91% for the same period. China INSOnline Corp. (NASDAQ:CHIO) is the 4th most profitable stock in this segment of the market. Its net profit margin was 57.79% for the last 12 months. Its operating profit margin was 77.86% for the same period. Montpelier Re Holdings Ltd. (NYSE:MRH) is the 5th most profitable stock in this segment of the market. Its net profit margin was 46.75% for the last 12 months. Its operating profit margin was 46.77% for the same period.

Validus Holdings, Ltd. (NYSE:VR) is the 6th most profitable stock in this segment of the market. Its net profit margin was 46.33% for the last 12 months. Its operating profit margin was 46.13% for the same period. Greenlight Capital Re, Ltd. (NASDAQ:GLRE) is the 7th most profitable stock in this segment of the market. Its net profit margin was 44.80% for the last 12 months. Its operating profit margin was 44.77% for the same period. Allied World Assurance Holdings, Ltd. (NYSE:AWH) is the 8th most profitable stock in this segment of the market. Its net profit margin was 34.15% for the last 12 months. Its operating profit margin was 35.82% for the same period. ProAssurance Corporation (NYSE:PRA) is the 9th most profitable stock in this segment of the market. Its net profit margin was 32.84% for the last 12 months. Its operating profit margin was 47.44% for the same period. Flagstone Reinsurance Holdings SA (NYSE:FSR) is the 10th most profitable stock in this segment of the market. Its net profit margin was 29.19% for the last 12 months. Its operating profit margin was 30.15% for the same period.