After-hours trading runs 4:00 PM – 8:00 PM ET.
MCRB last traded at $2.92 after hours, up $0.02 (0.69%) from its regular-session close of $2.90.
📅 MCRB is expected to report earnings around Nov 4, 2026 (estimated), with an estimated EPS of $-1.00. MCRB earnings details →
Seres Therapeutics (MCRB) is trading at $2.92 after hours, up $0.02 (0.69%) from its regular-session close of $2.90.
MCRB is up 0.69% 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 MCRB on the NASDAQ 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.
MCRB is expected to report earnings around Nov 4, 2026 (estimated), with an estimated EPS of $-1.00. Earnings are the most common cause of a large after-hours move, since most companies report after the close.