Wall Street traders are now betting that Warner Bros. For much of the year, the media giant known as WBD had seen increase in its short interest – or bets that its stock will fall. Short interest continued to shrink as both companies said they had regulatory issues under control, S3 data shows. Now, short interest is just 3% of the so-called float, or outstanding tradable shares, down from 6% in July. Getty ImagesDoes that mean this deal is done and the lack of short interest is 100% predicative of this outcome?