S&P 500 posts best week since 1974 as new Fed stimulus offsets historic unemployment filings

· *US stocks climbed on Thursday, continuing gains from Wednesday, as the Federal Reserve announced an additional $2.3 trillion in aid to businesses and governments.*
· *The S&P 500's four-day gain of 12% over the short week marked its best weekly performance since 1974.*
· *Data released on Thursday morning showed that...