Top 5 insurers in California's healthcare marketplace, ranked by market share

San Francisco-based Blue Cross of California has the largest market share of insurers participating in California's ACA health insurance marketplace, Covered California, according to a California Healthline report.

Here are the top five insurers in Covered California, based on market share and enrollment.  

1. Blue Shield of California: 31 percent market share, 389,480 enrollees
   
   
2. Indianapolis-based Anthem Blue Cross: 25 percent, 310,690
   
   
3. Oakland, Calif.-based Kaiser Permanente: 24 percent, 297,030
   
   
4. Woodland Hills, Calif.-based Health Net: 11 percent, 142,790
   
   
5. Long Beach, Calif.-based Molina Healthcare: 5 percent, 68,590