After-hours trading runs 4:00 PM – 8:00 PM ET.
HIYY last traded at $11.63 after hours, up $0.24 (2.15%) from its regular-session close of $11.39.
YieldMax HIMS Option Income Strategy ETF (HIYY) is trading at $11.63 after hours, up $0.24 (2.15%) from its regular-session close of $11.39.
HIYY is up 2.15% in after-hours trading. Moves in this session almost always follow something released after the 4:00 PM ET close — an earnings report, guidance, a filing, or news — and trade on far thinner volume than the regular session, so the size of the move can overstate what the market will settle on at the next open.
After-hours trading in HIYY on the ARCA runs from 4:00 PM to 8:00 PM ET on trading days, immediately after the regular session closes. Not every broker offers the full window, and liquidity thins sharply after about 6:30 PM ET.