Bigger picture, it makes sense for BABA to delist and go list in China. US oligarchs don't want BABA to blow up in the P/Es of 200s. It will swing money towards China and usurp AMZN. Which will eventually happen.
Time and time again, BABA reports good earnings, stronger than that of AMZN, but it ends the day down. Pure Political and Trader manipulation.