351.02 USD
↗ 2.26 (0.65%)PRE MARKET (AS OF 05:29 AM EDT)
WST Stock Premarket
West Pharmaceutical Services, Inc.
WSTNYSE • USD
Market: OPEN
Premarket trading runs 4:00 AM – 9:30 AM ET.
WST last traded at $351.02 in premarket, up $2.26 (0.65%) from its previous close of $348.76.
📅 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 Premarket Chart
WST Premarket 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 13 days ago, which filled in 1 trading day. Average 20-trading-day return after a WST gap up: -3.39%. 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 | ||||||
| 13 days ago | $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 premarket price?
West Pharmaceutical Services (WST) is trading at $351.02 in premarket, up $2.26 (0.65%) from the previous close of $348.76.
Why is WST moving in premarket?
West Pharmaceutical Services (WST) is up 0.65% from its previous close in premarket trading. Premarket moves are usually driven by company-specific news, earnings results, analyst rating or price-target changes, or broad market and sector sentiment. Check the latest WST premarket headlines and gap history below for the likely catalyst.
When does WST premarket trading start?
Premarket trading for WST on the NYSE runs from 4:00 AM to 9:30 AM Eastern Time, ahead of the regular session (9:30 AM – 4:00 PM ET). After-hours runs from 4:00 PM to 8:00 PM ET.
How often does WST fill its gaps?
Over the past 5 years, 43% of WST gap-ups have fully filled and 40% of gap-downs have filled. Median time to fill is 7 trading days for gap-ups and 27 trading days for gap-downs.
Does WST have any unfilled gaps?
No. WST has no unfilled gap events from the past 60 days; all recent gaps have been filled.
What's the average return after a WST gap?
Based on 12 qualifying gap events over the past 5 years, the average 20-trading-day return after a WST gap up is -3.39%, and after a gap down is +6.48%.
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.