407.00 USD
↘ 1.34 (0.33%)AFTER HOURS (AS OF Fri 08:15 PM EDT)
WAT Stock After Hours
Waters Corp
WATNYSE • USD
Market: CLOSED
After-hours trading runs 4:00 PM – 8:00 PM ET.
WAT last traded at $407.00 after hours, down $1.34 (0.33%) from its regular-session close of $408.34.
📅 WAT is expected to report earnings around Nov 3, 2026 before the open (estimated), with an estimated EPS of $4.01. WAT earnings details →
WAT After Hours Chart
WAT After Hours News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, WAT has had 9 qualifying gap events (gaps of 5% or more at the open) — 4 gap-ups and 5 gap-downs. Gap-ups averaged +10.1%, 50% have fully filled, median time to fill 3 trading days. Gap-downs averaged -8.9%, 40% have fully filled, median time to fill 50.5 trading days. Most recent: a +12% gap up on May 5, 2026, still unfilled. Average 20-trading-day return after a WAT gap up: +3.09%. After a gap down: -8.92%.
Gap Ups4 events
Fill Rate
50.0%
Avg Gap
10.1%
Avg 50% Fill
1d
Avg Fill
3d
Gap Downs5 events
Fill Rate
40.0%
Avg Gap
8.9%
Avg 50% Fill
41.5d
Avg Fill
50.5d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 50% | 50% | 100% | 100% |
| fills 50% | 50% | 50% | 50% | 75% |
| fills 75% | 50% | 50% | 50% | 50% |
| fills 100% | 0% | 50% | 50% | 50% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 100% | 100% | 100% | 100% |
| fills 50% | 0% | 0% | 0% | 0% |
| fills 75% | 0% | 0% | 0% | 0% |
| fills 100% | 0% | 0% | 0% | 0% |
Complete Gap History — 9 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-05-05 | $301.88 | +11.99% | Open | — | — | 11% | 11% | 27% | 39% |
| 2026-02-09 | $381.29 | -12.85% | Open | — | — | 26% | 26% | 26% | 26% |
| 2025-07-14 | $352.91 | -10.03% | Open | — | — | 26% | 26% | 26% | 26% |
| 2025-04-23 | $330.71 | +5.30% | Filled | 1d | 2d | 82% | 100% | 100% | 100% |
| 2024-11-01 | $323.11 | +16.06% | Open | 13d | — | 5% | 5% | 34% | 66% |
| 2024-07-31 | $327.66 | +7.21% | Filled | 1d | 4d | 90% | 100% | 100% | 100% |
| 2024-05-30 | $327.65 | -6.35% | Filled | 32d | 42d | 28% | 48% | 48% | 48% |
| 2023-05-09 | $296.50 | -9.59% | Filled | 51d | 59d | 46% | 46% | 46% | 46% |
| 2022-08-02 | $365.55 | -5.62% | Open | — | — | 44% | 44% | 44% | 44% |
Frequently Asked Questions
What is WAT's after-hours price?
Waters (WAT) is trading at $407.00 after hours, down $1.34 (0.33%) from its regular-session close of $408.34.
Why is WAT moving after hours?
WAT is down 0.33% 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 WAT after-hours trading start and end?
After-hours trading in WAT 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 WAT's after-hours move hold at the open?
An after-hours move that carries into the next session becomes an opening gap, and WAT's gap history is the best guide to what happens next: 50% of WAT 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 WAT report earnings?
WAT is expected to report earnings around Nov 3, 2026 before the open (estimated), with an estimated EPS of $4.01. Earnings are the most common cause of a large after-hours move, since most companies report after the close.