Meredith Whitney spoke with Maria Bartiromo on the floor of the NYSE this evening.

She predicts big-cap banks will be down some 15%, because investors still aren't pricing in the risks ahead.

Here are some things that will hit the sector:

Populism.

Government taking away the punchbowl.

The end of the re-equitization cycle (all those fees!)

The one bank she likes: Bank of America (BAC) because it has plenty of assets to sell.