Premarket trading runs 4:00 AM – 9:30 AM ET.
SNDK is trading at $1302.01 in premarket, up $41.08 (3.26%) from its previous close of $1260.93.
Over the past 5 years, SNDK has had 59 qualifying gap events (gaps of 5% or more at the open) — 31 gap-ups and 28 gap-downs. Gap-ups averaged +8%, 61% have fully filled, median time to fill 3 trading days. Gap-downs averaged -7.1%, 86% have fully filled, median time to fill 5 trading days. Most recent: a -6.4% gap down 8 days ago, which filled in 3 trading days. SNDK has 1 unfilled gap from the past 60 days — a -5.5% gap down on Oct 13, 2026, currently 96% retraced. Average 20-trading-day return after a SNDK gap up: +30.26%. After a gap down: +11.9%.
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 74% | 81% | 81% | 84% |
| fills 50% | 52% | 71% | 71% | 74% |
| fills 75% | 23% | 58% | 58% | 61% |
| fills 100% | 16% | 45% | 52% | 58% |
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 64% | 86% | 89% | 89% |
| fills 50% | 46% | 82% | 82% | 89% |
| fills 75% | 32% | 79% | 79% | 86% |
| fills 100% | 11% | 64% | 68% | 75% |
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 8 days ago | $1403.34 | -6.39% | Filled | 1d | 3d | 94% | 100% | 100% | 100% |
| 10 days ago | $1487.33 | -5.45% | Open | 1d | — | 96% | 96% | 96% | 96% |
| 2026-09-14 | $1633.35 | -6.85% | Filled | 1d | 5d | 54% | 100% | 100% | 100% |
| 2026-08-24 | $1596.08 | -6.39% | Filled | 2d | 7d | 22% | 77% | 100% | 100% |
| 2026-08-18 | $1786.85 | -6.12% | Filled | 14d | 15d | 43% | 43% | 43% | 100% |
| 2026-08-14 | $1528.11 | +7.78% | Filled | 1d | 7d | 69% | 88% | 100% | 100% |
| 2026-08-12 | $1271.05 | +6.86% | Filled | 1d | 51d | 57% | 57% | 57% | 57% |
| 2026-08-06 | $1350.50 | -13.12% | Filled | 1d | 5d | 85% | 100% | 100% | 100% |
| 2026-08-04 | $1288.03 | +5.45% | Filled | 3d | 3d | 26% | 100% | 100% | 100% |
| 2026-07-31 | $1279.96 | +8.10% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-07-30 | $1015.89 | +11.73% | Open | — | — | 9% | 12% | 12% | 12% |
| 2026-07-28 | $1278.23 | -8.19% | Filled | 3d | 3d | 14% | 100% | 100% | 100% |
| 2026-07-21 | $1390.95 | +8.68% | Filled | 4d | 5d | 18% | 100% | 100% | 100% |
| 2026-07-16 | $1615.00 | -5.42% | Filled | 4d | 5d | 28% | 100% | 100% | 100% |
| 2026-07-14 | $1673.97 | +7.95% | Filled | 1d | 2d | 72% | 100% | 100% | 100% |
| 2026-07-13 | $1915.92 | -6.42% | Open | 51d | — | 6% | 16% | 16% | 16% |
| 2026-07-09 | $1727.18 | +6.28% | Filled | 2d | 3d | 32% | 100% | 100% | 100% |
| 2026-07-07 | $1744.43 | -7.17% | Filled | 2d | 3d | 16% | 100% | 100% | 100% |
| 2026-07-01 | $2273.73 | -8.29% | Open | — | — | 24% | 24% | 24% | 24% |
| 2026-06-26 | $2335.00 | -7.07% | Open | 1d | — | 52% | 67% | 67% | 67% |
| 2026-06-25 | $1914.46 | +16.92% | Filled | 2d | 3d | 45% | 100% | 100% | 100% |
| 2026-06-23 | $2273.73 | -11.70% | Filled | 3d | 3d | 20% | 100% | 100% | 100% |
| 2026-06-15 | $1980.10 | +6.11% | Filled | 1d | 3d | 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 $1302.01 in premarket, up $41.08 (3.26%) from the previous close of $1260.93.
Sandisk (SNDK) is up 3.26% 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, 61% of SNDK gap-ups have fully filled and 86% 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 1 unfilled gap from the past 60 days. The largest is a -5.5% gap down from Oct 13, 2026 and is currently 96% retraced.
Based on 59 qualifying gap events over the past 5 years, the average 20-trading-day return after a SNDK gap up is +30.26%, and after a gap down is +11.9%.