"It's still early [in our experience with ACA exchanges].

We like the dynamics of the markets [Aetna is] in. But we think it's way too early to call it quits on the ACA and on the exchanges; we view it still as a big opportunity for the company. I'll remind everybody it's just a little over 6% of our operating revenue, so we still view it as an opportunity to play."

— Aetna CEO Mark Bertolini, speaking on an Oct. 29 third-quarter earnings call