65.65 USD
↘ 0.53 (0.80%)PRE MARKET (AS OF 05:29 AM EDT)
LYB Stock Premarket
LyondellBasell Industries N.V. Class A
LYBNYSE • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
LYB Premarket Chart
LYB Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, LYB has had 7 qualifying gap events (gaps of 5% or more at the open) — 2 gap-ups and 5 gap-downs. Gap-ups averaged +6.4%, 100% have fully filled, median time to fill 5.5 trading days. Gap-downs averaged -7.3%, 40% have fully filled, median time to fill 8.5 trading days. Most recent: a -6.9% gap down on Apr 17, 2026, which filled in 11 trading days. LYB has 1 unfilled gap from the past 60 days — a -9.5% gap down on Apr 8, 2026, currently 76% retraced. Average 20-trading-day return after a LYB gap up: -0.2%. After a gap down: -3%.
Gap Ups2 events
Fill Rate
100.0%
Avg Gap
6.4%
Avg 50% Fill
2d
Avg Fill
5.5d
Gap Downs5 events
Fill Rate
40.0%
Avg Gap
7.3%
Avg 50% Fill
2.5d
Avg Fill
8.5d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 50% | 100% | 100% | 100% |
| fills 50% | 50% | 100% | 100% | 100% |
| fills 75% | 50% | 100% | 100% | 100% |
| fills 100% | 0% | 50% | 100% | 100% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 20% | 100% | 100% | 100% |
| fills 50% | 20% | 80% | 80% | 80% |
| fills 75% | 0% | 20% | 40% | 60% |
| fills 100% | 0% | 20% | 40% | 40% |
Active Unfilled Gaps (past 60 days)
59 days ago
2026-04-08
Gap %
-9.49%
Gap From
$80.26
% vs Current
+24.43%
retraced 76% to $78.43
Complete Gap History — 7 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-04-17 | $75.29 | -6.87% | Filled | 5d | 11d | 4% | 55% | 100% | 100% |
| 2026-04-08 | $80.26 | -9.49% | Open | 2d | — | 22% | 53% | 53% | 76% |
| 2025-10-31 | $45.20 | +6.35% | Filled | 1d | 3d | 97% | 100% | 100% | 100% |
| 2025-07-24 | $67.22 | -6.81% | Open | — | — | 9% | 34% | 34% | 34% |
| 2025-05-12 | $56.93 | +6.50% | Filled | 3d | 8d | 4% | 81% | 100% | 100% |
| 2022-10-28 | $82.51 | -7.50% | Filled | 1d | 6d | 54% | 100% | 100% | 100% |
| 2022-06-03 | $115.25 | -5.94% | Open | 3d | — | 13% | 60% | 60% | 60% |
Frequently Asked Questions
What is LYB's premarket price?
LyondellBasell Industries N.V. (LYB) is trading at $65.65 in premarket, down $0.53 (+0.8%) from the previous close of $66.18.
When does LYB premarket trading start?
Premarket trading for LYB 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 LYB fill its gaps?
Over the past 5 years, 100% of LYB gap-ups have fully filled and 40% of gap-downs have filled. Median time to fill is 6 trading days for gap-ups and 9 trading days for gap-downs.
Does LYB have any unfilled gaps?
Yes. LYB has 1 unfilled gap from the past 60 days. The largest is a -9.5% gap down from Apr 8, 2026 and is currently 76% retraced.
What's the average return after a LYB gap?
Based on 7 qualifying gap events over the past 5 years, the average 20-trading-day return after a LYB gap up is -0.2%, and after a gap down is -3%.