ARTL ▲ +66.5% - Artelo Biosciences, Inc. $ARTL trading from cb halt Artelo Biosciences shares surged 66.5% today following the lifting of a trading halt tied to a circuit breaker. Circuit breaker halts temporarily pause trading when a stock moves sharply in a short period, and the resumption of trading allowed accumulated buy interest to execute. 23-SEP-2026 11:14 AM ET