Every weekday, the CNBC Investing Club with Jim Cramer releases the Homestretch — an actionable afternoon update, just in time for the last hour of trading on Wall Street. Monday markets: The S & P 500 opened the new week on a lower note after notching another new all-time high Friday. One theme we are seeing is declines in many momentum growth stocks that kept rallying daily on no new information and regardless of valuation. The posterchild of this group may have been AppLovin , which Jim discussed Sunday in his weekly column for Club members . AppLovin lost its momentum Monday after the S & P Dow Jones Indices selected two other companies — Apollo Global Management and Workday — to join the S & P 500. AppLovin was considered a leading candidate to be added, and traders like to bid up potential candidates in anticipation of the index-fund buying that comes with getting called up to the big leagues. Shares of AppLovin tumbled more than 11% Monday. Elsewhere, analytics software provider Palantir , another high-flying stock recently, is down more than 4%. It had been up in premarket trading. Buyer beware : Stocks tied to China are outperforming after Communist Party officials pledged a
