23.94 USD
↗ 0.02 (0.10%)AFTER HOURS (AS OF Mon 07:30 PM EDT)
AMPH Stock After Hours
Amphastar Pharmaceuticals, Inc.
AMPHNASDAQ • USD
Market: CLOSED
After-hours trading runs 4:00 PM – 8:00 PM ET.
AMPH last traded at $23.93 after hours, up $0.02 (0.10%) from its regular-session close of $23.91.
📅 AMPH is expected to report earnings around Nov 5, 2026 after the close (estimated), with an estimated EPS of $0.86. AMPH earnings details →
AMPH After Hours Chart
AMPH After Hours News
Gap Analytics — 5-year history, 5% minimum gap
No qualifying gap events found for AMPH.
Frequently Asked Questions
What is AMPH's after-hours price?
Amphastar Pharmaceuticals (AMPH) is trading at $23.93 after hours, up $0.02 (0.10%) from its regular-session close of $23.91.
Why is AMPH moving after hours?
AMPH is up 0.10% 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.
When does AMPH after-hours trading start and end?
After-hours trading in AMPH 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.
When does AMPH report earnings?
AMPH is expected to report earnings around Nov 5, 2026 after the close (estimated), with an estimated EPS of $0.86. Earnings are the most common cause of a large after-hours move, since most companies report after the close.