Stocks climb on Wall Street, led by rebound in regional bank shares

The S&P 500 rose 22 points, or 0.6%, to 3,878 as of 3:12 p.m. Eastern time Tuesday.

The Nasdaq added 1.1% and the Dow was largely flat.

The Fed is "stuck between a rock and a hard place," an investment strategist says.

Facebook's parent company says it expects its expenses this year to be lower than earlier forecast.