ARTY is trading $71.20, down 1.81% in after-hours trading, as technology and AI-linked shares weaken amid concerns over AI spending. - ARTY closed at $72.51 on October 29. - Reuters reported that Alphabet’s revenue miss and heavy AI spending concerns weighed on U.S. stocks; the Nasdaq fell the most among major indexes. - No separate ARTY-specific announcement or earnings catalyst was identified; available context points to sector and market sentiment.