Stocks are rising again as more fear evaporates from Wall Street. The S&P 500 was up 0.2% Thursday. It's on pace for its fifth gain in the last six days and a positive March after struggling in earlier weeks on worries about whether the banking system was cracking under the weight of higher interest rates. Forceful actions by regulators worldwide have helped restore confidence. Also boosting stocks have been big bets that the Federal Reserve may cut rates in coming months. But such expectations are also raising concerns of their own for some professionals on Wall Street.