Affirm downgrade, Microsoft price target, JetBlue-AAL alliance: Trending tickers

Affirm shares fall following a stock downgrade from Piper Sandler analysts. Morgan Stanley raises Microsoft's price target to $415. JetBlue ends its alliance with American Airlines as it pursues an acquisition of Spirit Airlines. Yahoo Finance Live's Seana Smith and Akiko Fujita check out several top trending stocks after Thursday's closing bell.