41.58 USD
↘ 0.70 (1.66%)PRE MARKET (AS OF 05:29 AM EDT)
SW Stock Premarket
Smurfit Westrock plc
SWNYSE • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
SW Premarket Chart
SW Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, SW has had 10 qualifying gap events (gaps of 5% or more at the open) — 5 gap-ups and 5 gap-downs. Gap-ups averaged +6.4%, 80% have fully filled, median time to fill 15.5 trading days. Gap-downs averaged -6.1%, 80% have fully filled, median time to fill 10.5 trading days. Most recent: a +6.8% gap up on Apr 8, 2026, which filled in 15 trading days. Average 20-trading-day return after a SW gap up: +0.52%. After a gap down: -2.2%.
Gap Ups5 events
Fill Rate
80.0%
Avg Gap
6.4%
Avg 50% Fill
11.5d
Avg Fill
15.5d
Gap Downs5 events
Fill Rate
80.0%
Avg Gap
6.1%
Avg 50% Fill
1d
Avg Fill
10.5d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 40% | 60% | 80% | 80% |
| fills 50% | 0% | 0% | 40% | 60% |
| fills 75% | 0% | 0% | 40% | 60% |
| fills 100% | 0% | 0% | 20% | 60% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 60% | 80% | 80% | 80% |
| fills 50% | 60% | 60% | 60% | 60% |
| fills 75% | 40% | 40% | 40% | 60% |
| fills 100% | 40% | 40% | 40% | 60% |
Complete Gap History — 10 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-04-08 | $39.23 | +6.81% | Filled | 11d | 15d | 2% | 36% | 95% | 100% |
| 2026-03-23 | $36.21 | +5.72% | Filled | 28d | 41d | 39% | 39% | 39% | 39% |
| 2026-02-23 | $48.74 | -5.35% | Open | — | — | 17% | 38% | 38% | 38% |
| 2026-02-11 | $45.75 | +6.39% | Filled | 8d | 8d | 17% | 17% | 100% | 100% |
| 2025-07-30 | $48.20 | -5.35% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-05-12 | $41.90 | +7.80% | Filled | 12d | 16d | 34% | 34% | 48% | 100% |
| 2025-04-07 | $41.06 | -6.38% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-04-03 | $47.06 | -6.08% | Filled | 27d | 30d | 14% | 14% | 14% | 14% |
| 2024-10-30 | $44.71 | +5.26% | Open | — | — | 4% | 4% | 4% | 4% |
| 2024-07-31 | $46.74 | -7.38% | Filled | 1d | 20d | 71% | 71% | 71% | 100% |
Frequently Asked Questions
What is SW's premarket price?
Smurfit Westrock (SW) is trading at $41.58 in premarket, down $0.70 (+1.66%) from the previous close of $42.28.
When does SW premarket trading start?
Premarket trading for SW 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 SW fill its gaps?
Over the past 5 years, 80% of SW gap-ups have fully filled and 80% of gap-downs have filled. Median time to fill is 16 trading days for gap-ups and 11 trading days for gap-downs.
Does SW have any unfilled gaps?
No. SW has no unfilled gap events from the past 60 days; all recent gaps have been filled.
What's the average return after a SW gap?
Based on 10 qualifying gap events over the past 5 years, the average 20-trading-day return after a SW gap up is +0.52%, and after a gap down is -2.2%.