Affirm rating slash, Sweetgreen upgrade, Coty's investor conference: Trending stocks

Affirm shares fall after the company received a rating cut from Piper Sandler. Sweetgreen stock rises after the company received an upgrade from Bank of America to "buy" from "neutral." Coty raises its fourth quarter and 2023 guidance at its first investor conference in Paris. Yahoo Finance Live takes a look at some of the trending tickers of the day.