S&P 500 Undercuts Key Level; Meta Platforms, Uber, Shopify In Focus

The S&P 500 and Nasdaq undercut their 50-day moving averages, at least intraday, following stronger-than-expected economic data. A close below the low of the Aug. 29 follow-through day would be bearish. But for now, Meta, Uber and Shopify appear to be setting up.