https://www.forbes.com/sites/petercohan/2020/07/21/with-21-sold-short-do-not-buy-stock-in-yrc-worldwide/?fbclid=IwAR3ec359XvpSJmBzs18dqEUNztIrvJFXwff_KyDnnjkTs8SuT0Km2kwsoR0#5029a9f5390d