Watch the full interview with Druckenmiller on missing the market comeback and what he's betting on

(This story is for CNBC Pro subscribers only.)

Longtime hedge fund manager Stanley Druckenmiller had an admission to make.

The billionaire investor acknowledged that the massive market rebound recently has "humbled" him. Druckenmiller said in a CNBC interview that he missed out on the comeback due to his underestimation of the Federal Reserve's power, returning only 3% during the market's 40% rally since the S&P 500′s March bottom.