87.92 USD
↗ 0.47 (0.55%)PRE MARKET (AS OF 05:29 AM EDT)
WLK Stock Premarket
Westlake Corporation
WLKNYSE • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
WLK last traded at $87.92 in premarket, up $0.47 (0.55%) from its previous close of $87.45.
📅 WLK is expected to report earnings around Aug 4, 2026 before the open (estimated), with an estimated EPS of $1.91. WLK earnings details →
WLK Premarket Chart
WLK Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, WLK has had 12 qualifying gap events (gaps of 5% or more at the open) — 4 gap-ups and 8 gap-downs. Gap-ups averaged +8.1%, 100% have fully filled, median time to fill 5 trading days. Gap-downs averaged -8.3%, 50% have fully filled, median time to fill 9.5 trading days. Most recent: a -5.1% gap down on May 6, 2026, still unfilled. WLK has 2 unfilled gaps from the past 60 days; the largest is a -10.6% gap down on May 5, 2026, currently 35% retraced. Average 20-trading-day return after a WLK gap up: +5.96%. After a gap down: -1.46%.
Gap Ups4 events
Fill Rate
100.0%
Avg Gap
8.1%
Avg 50% Fill
2.5d
Avg Fill
5d
Gap Downs8 events
Fill Rate
50.0%
Avg Gap
8.3%
Avg 50% Fill
1d
Avg Fill
9.5d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 100% | 100% | 100% | 100% |
| fills 50% | 50% | 100% | 100% | 100% |
| fills 75% | 0% | 75% | 75% | 75% |
| fills 100% | 0% | 75% | 75% | 75% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 100% | 100% | 100% | 100% |
| fills 50% | 75% | 75% | 88% | 88% |
| fills 75% | 50% | 63% | 63% | 63% |
| fills 100% | 13% | 25% | 25% | 38% |
Active Unfilled Gaps (past 60 days)
42 days ago
2026-05-06
Gap %
-5.06%
Gap From
$104.78
% vs Current
+24.25%
retraced 58% to $102.57
43 days ago
2026-05-05
Gap %
-10.59%
Gap From
$114.87
% vs Current
+36.21%
retraced 35% to $106.94
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 | ||||||
| 2026-05-06 | $104.78 | -5.06% | Open | 1d | — | 58% | 58% | 58% | 58% |
| 2026-05-05 | $114.87 | -10.59% | Open | — | — | 35% | 35% | 35% | 35% |
| 2026-04-08 | $123.39 | -7.41% | Open | 1d | — | 73% | 91% | 91% | 91% |
| 2026-02-24 | $93.02 | +10.43% | Filled | 1d | 56d | 50% | 50% | 50% | 50% |
| 2025-10-30 | $73.47 | -5.38% | Filled | 1d | 30d | 84% | 84% | 84% | 84% |
| 2025-08-05 | $76.25 | +8.84% | Filled | 4d | 5d | 34% | 100% | 100% | 100% |
| 2025-05-12 | $80.00 | +5.42% | Filled | 4d | 4d | 27% | 100% | 100% | 100% |
| 2025-05-02 | $92.27 | -13.86% | Open | 7d | — | 39% | 39% | 61% | 61% |
| 2024-02-20 | $144.15 | -12.39% | Filled | 1d | 17d | 79% | 85% | 86% | 100% |
| 2023-03-13 | $110.43 | -5.26% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2022-11-03 | $96.07 | -6.38% | Filled | 1d | 2d | 80% | 100% | 100% | 100% |
| 2022-10-14 | $90.50 | +7.86% | Filled | 1d | 5d | 75% | 100% | 100% | 100% |
Frequently Asked Questions
What is WLK's premarket price?
Westlake (WLK) is trading at $87.92 in premarket, up $0.47 (0.55%) from the previous close of $87.45.
Why is WLK moving in premarket?
Westlake (WLK) is up 0.55% 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 WLK premarket headlines and gap history below for the likely catalyst.
When does WLK premarket trading start?
Premarket trading for WLK 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 WLK fill its gaps?
Over the past 5 years, 100% of WLK gap-ups have fully filled and 50% of gap-downs have filled. Median time to fill is 5 trading days for gap-ups and 10 trading days for gap-downs.
Does WLK have any unfilled gaps?
Yes. WLK has 2 unfilled gaps from the past 60 days. The largest is a -10.6% gap down from May 5, 2026 and is currently 35% retraced.
What's the average return after a WLK gap?
Based on 12 qualifying gap events over the past 5 years, the average 20-trading-day return after a WLK gap up is +5.96%, and after a gap down is -1.46%.
When does WLK report earnings?
WLK is expected to report earnings around Aug 4, 2026 before the open (estimated), with an estimated EPS of $1.91.