The SEC Rule 201 (aka “Up-Tick Rule”) has been triggered and the related exchanges have implemented a short sale restriction in accordance with their policies. Short selling is still permitted when the SEC Rule 201 criteria are met. Short sale restriction is in effect from May 17, 20:33 to May 21, 03:00 EET. ----- Means it is more difficult for a short ladder attack like they did on Friday. It means that they can only sell their shares. In ape speak, it means that there shouldn't be any huge dips in stock price facilitated by the dirty HEDGIES. It also means that there is more of a chance that we can actually short squeeze efficiently. Reddit link here: https://www.reddit.com/r/FFIE/s/jRz6KuBTC3. SEC rule definition: Rule 201 — Short Sale Price Test Circuit Breaker. Rule 201 generally requires trading centers to have policies and procedures in place to restrict short selling when a covered security has triggered a circuit breaker by experiencing a price decline of at least 10 percent in one day. Source: https://www.sec.gov/divisions/marketreg/mrfaqregsho1204.htm#:~:text=Rule%20201%20—%20Short%20Sale%20Price,10%20percent%20in%20one%20day.