Due to a 10% intraday drop yesterday, the U.S. Securities and Exchange Commission's Rule 201 (also known as the "Uptick Rule" or short sale restriction) was triggered and took effect today. Restriction mechanism: After the restriction takes effect, investors can still short the stock, but they cannot actively sell at the current best bid price or lower. Short sellers can only place limit orders at an "uptick quote" above the current best bid price, passively waiting for a buyer to execute the trade.

Effective time: The restriction is not only effective on the day it is triggered but also continues until the close of the next full trading day. The first screenshot clearly shows that HIMS's short sale restriction lasted from 09:32 EST on Feb 24 to 20:00 on Feb 25 (i.e., after-hours trading ends).$Hims & Hers Health(HIMS.US) $Defiance Daily Target 2X Long HIMS ETF(HIMZ.US)