Why PubMatic Stock Plummeted Today

PubMatic (PUBM -23.91%) stock got hit with big sell-offs in Friday's trading. The advertising-technologies company's share price closed out the daily session down 23.9%. The S&P 500 index closed out the day up 1.5%, and the Nasdaq Composite ended the session up 1.6%.PubMatic reported its fourth-quarter results after the market closed, and posted earnings that beat the market's expectations. On the other hand, sales missed Wall Street's guidance -- and the company's forward guidance raised a big red flag.Pub ...