227.79 USD
PREVIOUS CLOSE
ALAB Stock Premarket
Astera Labs, Inc. Common Stock
ALABNASDAQ • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
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ALAB Premarket Chart
ALAB Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, ALAB has had 71 qualifying gap events (gaps of 5% or more at the open) — 37 gap-ups and 34 gap-downs. Gap-ups averaged +8.4%, 73% have fully filled, median time to fill 2 trading days. Gap-downs averaged -7.1%, 91% have fully filled, median time to fill 3 trading days. Most recent: a -7% gap down 3 days ago, which filled in 1 trading day. ALAB has 2 unfilled gaps from the past 60 days; the largest is a +8.8% gap up on Nov 6, 2026, currently 99% retraced. Average 20-trading-day return after a ALAB gap up: +8.63%. After a gap down: +7.09%.
Gap Ups37 events
Fill Rate
73.0%
Avg Gap
8.4%
Avg 50% Fill
1d
Avg Fill
2d
Gap Downs34 events
Fill Rate
91.2%
Avg Gap
7.1%
Avg 50% Fill
1d
Avg Fill
3d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 73% | 92% | 92% | 92% |
| fills 50% | 54% | 81% | 81% | 81% |
| fills 75% | 38% | 73% | 73% | 76% |
| fills 100% | 22% | 62% | 68% | 73% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 74% | 85% | 88% | 91% |
| fills 50% | 56% | 79% | 85% | 91% |
| fills 75% | 41% | 79% | 82% | 88% |
| fills 100% | 26% | 76% | 79% | 88% |
Active Unfilled Gaps (past 60 days)
9 days ago
2026-11-06
Gap %
+8.85%
Gap From
$179.47
% vs Current
-19.10%
retraced 99% to $179.58
16 days ago
2026-10-30
Gap %
-6.69%
Gap From
$290.43
% vs Current
+30.92%
retraced 21% to $274.99
Complete Gap History — 71 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 3 days ago | $230.91 | -6.96% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 4 days ago | $216.18 | +7.37% | Filled | 1d | 2d | 58% | 100% | 100% | 100% |
| 9 days ago | $179.47 | +8.85% | Open | 1d | — | 99% | 99% | 99% | 99% |
| 10 days ago | $223.27 | -5.31% | Filled | 3d | 4d | 3% | 100% | 100% | 100% |
| 11 days ago | $233.62 | -6.70% | Filled | 1d | 6d | 99% | 100% | 100% | 100% |
| 16 days ago | $290.43 | -6.69% | Open | — | — | 21% | 21% | 21% | 21% |
| 24 days ago | $290.06 | -5.27% | Filled | 4d | 5d | 28% | 100% | 100% | 100% |
| 2026-10-15 | $300.28 | -5.09% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-09-14 | $291.22 | -7.54% | Filled | 4d | 4d | 14% | 100% | 100% | 100% |
| 2026-08-18 | $320.17 | -5.05% | Filled | 14d | 14d | 49% | 49% | 49% | 100% |
| 2026-08-17 | $321.61 | +7.26% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-08-12 | $311.99 | +7.21% | Filled | 1d | 2d | 72% | 100% | 100% | 100% |
| 2026-08-04 | $321.05 | +7.78% | Filled | 2d | 2d | 24% | 100% | 100% | 100% |
| 2026-07-31 | $299.69 | +9.55% | Filled | 1d | 2d | 81% | 100% | 100% | 100% |
| 2026-07-30 | $249.74 | +12.99% | Open | 26d | — | 28% | 28% | 28% | 49% |
| 2026-07-28 | $282.52 | -5.50% | Filled | 3d | 3d | 11% | 100% | 100% | 100% |
| 2026-07-21 | $309.09 | +5.65% | Filled | 1d | 2d | 73% | 100% | 100% | 100% |
| 2026-07-14 | $362.05 | +8.28% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-07-09 | $393.16 | +6.28% | Filled | 2d | 3d | 23% | 100% | 100% | 100% |
| 2026-07-07 | $432.74 | -6.84% | Filled | 3d | 3d | 48% | 100% | 100% | 100% |
| 2026-06-25 | $399.92 | +5.67% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-06-23 | $439.66 | -9.15% | Filled | 1d | 5d | 50% | 100% | 100% | 100% |
| 2026-05-15 | $228.64 | -5.31% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-05-06 | $215.69 | +6.52% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-04-28 | $196.64 | -7.85% | Filled | 1d | 2d | 58% | 100% | 100% | 100% |
| 2026-04-21 | $175.80 | +7.37% | Open | 6d | — | 41% | 71% | 71% | 71% |
| 2026-04-08 | $118.99 | +7.57% | Open | 1d | — | 67% | 67% | 67% | 67% |
| 2026-03-05 | $113.77 | +5.07% | Filled | 2d | 3d | 37% | 100% | 100% | 100% |
| 2026-02-11 | $182.86 | -12.09% | Filled | 43d | 48d | 6% | 6% | 6% | 6% |
| 2026-02-06 | $142.82 | +6.73% | Filled | 4d | 4d | 10% | 100% | 100% | 100% |
| 2025-12-09 | $175.74 | -6.63% | Filled | 1d | 15d | 65% | 89% | 97% | 100% |
| 2025-12-03 | $142.94 | +5.16% | Filled | 1d | 10d | 77% | 77% | 100% | 100% |
| 2025-11-20 | $142.01 | +8.78% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-11-04 | $191.56 | -5.32% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-10-31 | $169.55 | +7.05% | Filled | 4d | 5d | 4% | 100% | 100% | 100% |
| 2025-10-15 | $161.55 | +5.58% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-10-14 | $199.53 | -7.86% | Filled | 14d | 14d | 1% | 1% | 1% | 100% |
| 2025-10-06 | $200.74 | +13.86% | Filled | 2d | 6d | 42% | 100% | 100% | 100% |
| 2025-09-29 | $197.78 | +5.28% | Filled | 1d | 2d | 95% | 100% | 100% | 100% |
| 2025-09-25 | $205.27 | -6.20% | Filled | 1d | 3d | 99% | 100% | 100% | 100% |
| 2025-09-24 | $230.11 | -7.87% | Filled | 9d | 9d | 9% | 9% | 100% | 100% |
| 2025-09-10 | $214.49 | +5.10% | Filled | 1d | 11d | 77% | 77% | 100% | 100% |
| 2025-08-06 | $135.54 | +21.73% | Open | 55d | — | 15% | 15% | 15% | 15% |
| 2025-08-01 | $136.73 | -7.43% | Filled | 1d | 2d | 74% | 100% | 100% | 100% |
| 2025-07-21 | $102.13 | +8.47% | Open | — | — | 1% | 36% | 36% | 36% |
| 2025-05-12 | $71.20 | +12.41% | Open | — | — | 40% | 40% | 40% | 40% |
| 2025-05-07 | $71.36 | -5.61% | Filled | 1d | 2d | 99% | 100% | 100% | 100% |
| 2025-05-01 | $65.31 | +5.04% | Filled | 5d | 5d | 11% | 100% | 100% | 100% |
| 2025-04-23 | $55.31 | +9.82% | Open | — | — | 26% | 26% | 26% | 26% |
| 2025-04-16 | $60.08 | -5.86% | Filled | 1d | 5d | 80% | 100% | 100% | 100% |
| 2025-04-14 | $60.13 | +5.26% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-04-08 | $55.16 | +7.54% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-04-07 | $52.94 | -8.37% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-04-04 | $55.68 | -5.78% | Filled | 2d | 2d | 39% | 100% | 100% | 100% |
| 2025-04-03 | $64.08 | -9.35% | Filled | 5d | 5d | 32% | 100% | 100% | 100% |
| 2025-03-12 | $66.05 | +5.84% | Filled | 1d | 2d | 58% | 100% | 100% | 100% |
| 2025-03-06 | $68.57 | -6.17% | Filled | 2d | 5d | 45% | 100% | 100% | 100% |
| 2025-02-11 | $103.29 | -5.98% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2025-02-03 | $101.42 | -12.34% | Filled | 1d | 2d | 96% | 100% | 100% | 100% |
| 2025-01-28 | $83.16 | +6.80% | Filled | 1d | 19d | 88% | 88% | 88% | 100% |
| 2025-01-27 | $115.55 | -11.52% | Open | 9d | — | 6% | 28% | 67% | 67% |
| 2024-11-21 | $97.42 | +5.05% | Filled | 5d | 5d | 21% | 100% | 100% | 100% |
| 2024-11-06 | $95.91 | -6.16% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2024-11-05 | $69.65 | +23.98% | Open | — | — | 13% | 13% | 13% | 13% |
| 2024-10-09 | $52.96 | +15.48% | Open | — | — | 21% | 21% | 21% | 21% |
| 2024-08-05 | $42.38 | -11.47% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2024-08-02 | $40.45 | -5.98% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2024-07-31 | $42.22 | +5.19% | Filled | 2d | 2d | 43% | 100% | 100% | 100% |
| 2024-05-08 | $76.19 | -6.73% | Filled | 1d | 6d | 61% | 100% | 100% | 100% |
| 2024-05-01 | $84.76 | -5.00% | Open | — | — | 2% | 17% | 17% | 17% |
| 2024-03-21 | $62.03 | +6.40% | Filled | 1d | 21d | 64% | 64% | 64% | 100% |
Related: ALAB quote & chart · After hours · Technical analysis · Fundamentals · Earnings · Short interest
Frequently Asked Questions
What is ALAB's premarket price?
No premarket activity has been recorded yet for ALAB today. The previous regular-session close was $227.79.
When does ALAB premarket trading start?
Premarket trading for ALAB 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.
How often does ALAB fill its gaps?
Over the past 5 years, 73% of ALAB gap-ups have fully filled and 91% of gap-downs have filled. Median time to fill is 2 trading days for gap-ups and 3 trading days for gap-downs.
Does ALAB have any unfilled gaps?
Yes. ALAB has 2 unfilled gaps from the past 60 days. The largest is a +8.8% gap up from Nov 6, 2026 and is currently 99% retraced.
What's the average return after a ALAB gap?
Based on 71 qualifying gap events over the past 5 years, the average 20-trading-day return after a ALAB gap up is +8.63%, and after a gap down is +7.09%.