That's not what the release said. Short interest has accumulated over a period of multiple days. Margin calls will liquidate some of the shorts but that is directly dependent on the account balance of the short seller which will be different for each. Other short sellers will suck it up and voluntarily cover if the stock continues to rise. Most short sellers, in fact, would have likely put in a stop loss to limit the damage should the stock run quickly upward.
But no where in the release is their any proof that most will have to cover next Tuesday. The MM might be able to influence this but we have no knowledge of that.
IMO this pump sends the message that Tuesday will be a big covering day but I still see no proof of this.
Hey, maybe Tuesday will be a big covering day but the release is vague concerning that. JMO.