Stocks have had a good bounce. But here’s why this investment manager thinks lows will be retested. - MarketWatch

1. S&P 500 saw a 7.1% gain, ending four-session decline. 2. Dan Niles predicts stock retests recent lows, citing market chaos. 3. Historical bear market psychology suggests concerns over market sustainability. 4. U.S.-China trade relations remain uncertain, affecting economic forecasts. 5. Earnings estimates for S&P 500 growth look overly optimistic.