346.12 USD
↘ 0.12 (0.03%)AFTER HOURS (AS OF Fri 08:14 PM EDT)
WST Stock After Hours
West Pharmaceutical Services, Inc.
WSTNYSE • USD
Market: CLOSED
After-hours trading runs 4:00 PM – 8:00 PM ET.
WST last traded at $346.12 after hours, down $0.12 (0.03%) from its regular-session close of $346.23.
📅 WST is expected to report earnings around Oct 22, 2026 before the open (estimated), with an estimated EPS of $2.18. WST earnings details →
WST After Hours Chart
WST After Hours News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, WST has had 12 qualifying gap events (gaps of 5% or more at the open) — 7 gap-ups and 5 gap-downs. Gap-ups averaged +12.1%, 43% have fully filled, median time to fill 7 trading days. Gap-downs averaged -16.2%, 40% have fully filled, median time to fill 26.5 trading days. Most recent: a +7.4% gap up on Jul 23, 2026, which filled in 1 trading day. Average 20-trading-day return after a WST gap up: -4.06%. After a gap down: +6.48%.
Gap Ups7 events
Fill Rate
42.9%
Avg Gap
12.1%
Avg 50% Fill
3.5d
Avg Fill
7d
Gap Downs5 events
Fill Rate
40.0%
Avg Gap
16.2%
Avg 50% Fill
7.5d
Avg Fill
26.5d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 14% | 100% | 100% | 100% |
| fills 50% | 14% | 86% | 86% | 86% |
| fills 75% | 14% | 57% | 57% | 57% |
| fills 100% | 14% | 14% | 43% | 43% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 60% | 60% | 80% | 80% |
| fills 50% | 0% | 40% | 60% | 80% |
| fills 75% | 0% | 0% | 20% | 60% |
| fills 100% | 0% | 0% | 0% | 20% |
Complete Gap History — 12 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-07-23 | $358.41 | +7.42% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-04-23 | $274.41 | +12.24% | Open | 4d | — | 14% | 52% | 52% | 52% |
| 2025-10-23 | $277.00 | +8.69% | Filled | 3d | 7d | 4% | 96% | 100% | 100% |
| 2025-07-24 | $227.31 | +24.00% | Open | 4d | — | 21% | 81% | 88% | 88% |
| 2025-02-13 | $322.28 | -24.34% | Open | — | — | 7% | 7% | 7% | 7% |
| 2024-10-24 | $286.44 | +14.33% | Open | 2d | — | 6% | 55% | 55% | 69% |
| 2024-07-25 | $323.77 | -12.78% | Open | 5d | — | 31% | 64% | 68% | 68% |
| 2024-02-15 | $408.19 | -17.18% | Open | 18d | — | 25% | 46% | 47% | 88% |
| 2023-10-26 | $358.00 | -8.38% | Filled | 10d | 20d | 15% | 15% | 60% | 100% |
| 2023-02-16 | $279.18 | +11.96% | Open | — | — | 2% | 26% | 26% | 26% |
| 2022-11-10 | $221.51 | +5.93% | Filled | 6d | 7d | 20% | 97% | 100% | 100% |
| 2022-10-27 | $254.40 | -18.44% | Filled | 3d | 33d | 49% | 51% | 76% | 98% |
Frequently Asked Questions
What is WST's after-hours price?
West Pharmaceutical Services (WST) is trading at $346.12 after hours, down $0.12 (0.03%) from its regular-session close of $346.23.
Why is WST moving after hours?
WST is down 0.03% 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 WST after-hours trading start and end?
After-hours trading in WST 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 WST's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and WST's gap history is the best guide to what happens next: 43% of WST gap-ups have fully filled, and 40% 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 WST report earnings?
WST is expected to report earnings around Oct 22, 2026 before the open (estimated), with an estimated EPS of $2.18. Earnings are the most common cause of a large after-hours move, since most companies report after the close.