Wall Street Week Ahead - Small banks rally pauses but may not be over yet

By Sinead Carew and Chuck Mikolajczak NEW YORK (Reuters) - The rally in regional U.S. bank stocks that followed last month's election of Donald Trump may not be over, but investors may have to wait for policy to take shape for the massive move to extend further. The S&P 600 index of small-cap banks has surged more than 20 percent since Trump's surprise Nov. 8 victory, while their large-cap peers on the S&P 500 index have jumped over 17 percent. Smaller lenders could potentially add as mu