Premarket trading runs 4:00 AM – 9:30 AM ET.
SNDK is trading at $2041.50 in premarket, up $49.95 (2.51%) from its previous close of $1991.55.
Over the past 5 years, SNDK has had 37 qualifying gap events (gaps of 5% or more at the open) — 22 gap-ups and 15 gap-downs. Gap-ups averaged +7.7%, 45% have fully filled, median time to fill 2.5 trading days. Gap-downs averaged -6.6%, 100% have fully filled, median time to fill 5 trading days. Most recent: a +6.1% gap up 2 days ago, still unfilled. SNDK has 2 unfilled gaps from the past 60 days; the largest is a +6.8% gap up on Apr 29, 2026, currently 33% retraced. Average 20-trading-day return after a SNDK gap up: +46.69%. After a gap down: +25.25%.
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 73% | 77% | 77% | 82% |
| fills 50% | 55% | 64% | 64% | 68% |
| fills 75% | 27% | 50% | 50% | 55% |
| fills 100% | 18% | 32% | 36% | 45% |
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 73% | 87% | 93% | 93% |
| fills 50% | 53% | 87% | 87% | 93% |
| fills 75% | 40% | 87% | 87% | 93% |
| fills 100% | 20% | 73% | 73% | 80% |
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2 days ago | $1980.10 | +6.11% | Open | 1d | — | 66% | 100% | 100% | 100% |
| 2026-04-29 | $1002.35 | +6.81% | Open | — | — | 16% | 33% | 33% | 33% |
| 2026-04-08 | $710.80 | +10.30% | Open | — | — | 35% | 35% | 35% | 35% |
| 2026-04-02 | $692.73 | -7.31% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-03-25 | $702.48 | -7.33% | Filled | 1d | 6d | 70% | 100% | 100% | 100% |
| 2026-03-19 | $753.69 | -6.17% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-03-03 | $619.08 | -6.05% | Filled | 2d | 6d | 31% | 100% | 100% | 100% |
| 2026-02-12 | $599.34 | +6.88% | Filled | 1d | 2d | 61% | 100% | 100% | 100% |
| 2026-02-11 | $541.64 | +6.81% | Filled | 14d | 17d | 10% | 11% | 11% | 100% |
| 2026-02-06 | $576.20 | +6.65% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-02-04 | $695.51 | -5.97% | Filled | 13d | 28d | 21% | 21% | 34% | 90% |
| 2026-01-30 | $539.30 | +20.75% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-01-06 | $274.08 | +5.35% | Open | — | — | 2% | 2% | 2% | 2% |
| 2025-12-22 | $237.61 | +5.07% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-12-18 | $206.83 | +7.69% | Open | 1d | — | 55% | 55% | 55% | 55% |
| 2025-12-01 | $223.28 | -5.12% | Filled | 5d | 5d | 30% | 100% | 100% | 100% |
| 2025-11-13 | $283.10 | -5.33% | Filled | 3d | 35d | 25% | 98% | 98% | 98% |
| 2025-11-04 | $207.01 | -9.12% | Filled | 1d | 2d | 79% | 100% | 100% | 100% |
| 2025-11-03 | $199.33 | +5.78% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-10-30 | $204.36 | -6.04% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-10-29 | $175.53 | +6.35% | Open | — | — | 46% | 46% | 46% | 46% |
| 2025-10-15 | $127.29 | +5.86% | Open | 1d | — | 57% | 57% | 57% | 57% |
| 2025-10-14 | $134.61 | -8.19% | Filled | 1d | 2d | 63% | 100% | 100% | 100% |
| 2025-10-13 | $116.91 | +10.97% | Open | 2d | — | 44% | 68% | 68% | 68% |
| 2025-10-02 | $121.12 | +6.25% | Filled | 1d | 3d | 72% | 100% | 100% | 100% |
| 2025-09-29 | $97.12 | +7.34% | Open | — | — | 13% | 13% | 13% | 13% |
| 2025-09-11 | $73.92 | +11.34% | Open | — | — | 11% | 11% | 11% | 11% |
| 2025-09-04 | $53.01 | +5.02% | Open | — | — | 5% | 5% | 5% | 5% |
| 2025-08-15 | $46.68 | -7.75% | Filled | 1d | 6d | 85% | 100% | 100% | 100% |
| 2025-05-12 | $37.74 | +9.01% | Filled | 6d | 10d | 34% | 77% | 100% | 100% |
| 2025-04-23 | $29.62 | +7.98% | Open | 1d | — | 75% | 75% | 75% | 75% |
| 2025-04-14 | $31.97 | +5.57% | Filled | 1d | 3d | 71% | 100% | 100% | 100% |
| 2025-04-10 | $36.58 | -5.41% | Filled | 3d | 20d | 22% | 79% | 79% | 100% |
| 2025-04-04 | $38.26 | -6.64% | Filled | 4d | 4d | 6% | 100% | 100% | 100% |
| 2025-04-03 | $47.67 | -6.02% | Filled | 53d | 54d | 0% | 0% | 0% | 0% |
| 2025-03-07 | $46.50 | +5.81% | Filled | 1d | 20d | 76% | 76% | 76% | 100% |
| 2025-03-04 | $50.31 | -7.20% | Filled | 1d | 4d | 94% | 100% | 100% | 100% |
Sandisk (SNDK) is trading at $2041.50 in premarket, up $49.95 (2.51%) from the previous close of $1991.55.
Sandisk (SNDK) is up 2.51% 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 SNDK premarket headlines and gap history below for the likely catalyst.
Premarket trading for SNDK on the NASDAQ 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.
Over the past 5 years, 45% of SNDK gap-ups have fully filled and 100% of gap-downs have filled. Median time to fill is 3 trading days for gap-ups and 5 trading days for gap-downs.
Yes. SNDK has 2 unfilled gaps from the past 60 days. The largest is a +6.8% gap up from Apr 29, 2026 and is currently 33% retraced.
Based on 37 qualifying gap events over the past 5 years, the average 20-trading-day return after a SNDK gap up is +46.69%, and after a gap down is +25.25%.