50.76 USD
↗ 0.13 (0.26%)AFTER HOURS (AS OF Tue 07:50 PM EDT)
GSK Stock After Hours
GSK plc American Depositary Shares (Each representing two Ordinary Shares)
GSKNYSE • USD
Market: CLOSED
After-hours trading runs 4:00 PM – 8:00 PM ET.
GSK last traded at $50.76 after hours, up $0.13 (0.26%) from its regular-session close of $50.63.
📅 GSK is scheduled to report earnings on Oct 28, 2026 before the open (confirmed), with an estimated EPS of $1.37. GSK earnings details →
GSK After Hours Chart
GSK After Hours News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, GSK has had 8 qualifying gap events (gaps of 5% or more at the open) — 3 gap-ups and 5 gap-downs. Gap-ups averaged +5.9%, 67% have fully filled, median time to fill 36.5 trading days. Gap-downs averaged -9.2%, 20% have fully filled, median time to fill 10 trading days. Most recent: a -8.2% gap down on Apr 29, 2026, still unfilled. Average 20-trading-day return after a GSK gap up: +2.7%. After a gap down: -5.02%.
Gap Ups3 events
Fill Rate
66.7%
Avg Gap
5.9%
Avg 50% Fill
13.5d
Avg Fill
36.5d
Gap Downs5 events
Fill Rate
20.0%
Avg Gap
9.2%
Avg 50% Fill
2d
Avg Fill
10d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 0% | 33% | 33% | 67% |
| fills 50% | 0% | 33% | 33% | 67% |
| fills 75% | 0% | 0% | 0% | 0% |
| fills 100% | 0% | 0% | 0% | 0% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 60% | 80% | 80% | 80% |
| fills 50% | 20% | 40% | 40% | 40% |
| fills 75% | 0% | 0% | 20% | 20% |
| fills 100% | 0% | 0% | 20% | 20% |
Complete Gap History — 8 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-04-29 | $54.47 | -8.21% | Open | 2d | — | 48% | 59% | 59% | 59% |
| 2026-02-04 | $53.34 | +6.04% | Filled | 21d | 30d | 7% | 7% | 7% | 57% |
| 2025-10-29 | $43.70 | +5.31% | Open | — | — | 22% | 22% | 22% | 22% |
| 2025-04-07 | $36.53 | -5.53% | Filled | 1d | 10d | 60% | 60% | 100% | 100% |
| 2025-02-05 | $34.84 | +6.37% | Filled | 6d | 43d | 1% | 69% | 69% | 69% |
| 2024-06-03 | $44.77 | -7.93% | Open | 60d | — | 14% | 34% | 34% | 34% |
| 2022-08-11 | $38.30 | -8.67% | Open | — | — | 30% | 35% | 35% | 35% |
| 2022-07-25 | $42.29 | -15.64% | Open | — | — | 1% | 14% | 14% | 14% |
Frequently Asked Questions
What is GSK's after-hours price?
GSK plc American (Each representing two) (GSK) is trading at $50.76 after hours, up $0.13 (0.26%) from its regular-session close of $50.63.
Why is GSK moving after hours?
GSK is up 0.26% 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 GSK after-hours trading start and end?
After-hours trading in GSK on the NYSE 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.
Will GSK's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and GSK's gap history is the best guide to what happens next: 67% of GSK gap-ups have fully filled, and 20% 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.
When does GSK report earnings?
GSK is scheduled to report earnings on Oct 28, 2026 before the open (confirmed), with an estimated EPS of $1.37. Earnings are the most common cause of a large after-hours move, since most companies report after the close.