ARTY is trading at $80.00, up 2.22% in after-hours trading, with no directly confirmed catalyst. - ARTY is the iShares Future AI & Tech ETF, which holds a diversified basket of AI and technology companies; Micron represents 4.58% of its holdings. - Micron reported record fiscal fourth-quarter results after the close, but available reporting does not establish that its results caused ARTY’s after-hours gain.