After-hours trading runs 4:00 PM – 8:00 PM ET.
ABVX last traded at $104.82 after hours, down $0.23 (0.21%) from its regular-session close of $105.04.
Over the past 5 years, ABVX has had 5 qualifying gap events (gaps of 5% or more at the open) — 4 gap-ups and 1 gap-down. Gap-ups averaged +15.3%, 50% have fully filled, median time to fill 5 trading days. Gap-downs averaged -40.2%, 100% have fully filled, median time to fill 20 trading days. Most recent: a +36.1% gap up on Jun 30, 2026, still unfilled. Average 20-trading-day return after a ABVX gap up: +11.57%. After a gap down: +70.99%.
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 50% | 50% | 50% | 100% |
| fills 50% | 50% | 50% | 50% | 75% |
| fills 75% | 25% | 25% | 50% | 50% |
| fills 100% | 25% | 25% | 50% | 50% |
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 0% | 100% | 100% | 100% |
| fills 50% | 0% | 100% | 100% | 100% |
| fills 75% | 0% | 0% | 0% | 100% |
| fills 100% | 0% | 0% | 0% | 100% |
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-06-30 | $96.15 | +36.14% | Open | 39d | — | 8% | 8% | 8% | 37% |
| 2026-06-03 | $72.50 | +12.08% | Open | 15d | — | 6% | 6% | 6% | 74% |
| 2026-06-02 | $129.69 | -40.22% | Filled | 3d | 20d | 11% | 59% | 59% | 100% |
| 2026-05-05 | $117.13 | +6.08% | Filled | 1d | 9d | 64% | 71% | 100% | 100% |
| 2026-03-12 | $112.31 | +7.06% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
Abivax SA American (ABVX) is trading at $104.82 after hours, down $0.23 (0.21%) from its regular-session close of $105.04.
ABVX is down 0.21% 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 ABVX 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.
An after-hours move that carries into the next session becomes an opening gap, and ABVX's gap history is the best guide to what happens next: 50% of ABVX gap-ups have fully filled, and 100% of gap-downs have filled over the past 5 years. Fill rates this high mean a large after-hours move is more often faded than extended.