295.00 USD
↘ 8.64 (2.85%)PRE MARKET (AS OF 05:29 AM EDT)
Premarket trading runs 4:00 AM – 9:30 AM ET.
Over the past 5 years, ALNY has had 19 qualifying gap events (gaps of 5% or more at the open) — 7 gap-ups and 12 gap-downs. Gap-ups averaged +15.4%, 57% have fully filled, median time to fill 1.5 trading days. Gap-downs averaged -7.6%, 58% have fully filled, median time to fill 6 trading days. Most recent: a -5.1% gap down on Jan 12, 2026, still unfilled. Average 20-trading-day return after a ALNY gap up: +4.13%. After a gap down: +0.2%.
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 71% | 86% | 86% | 86% |
| fills 50% | 43% | 57% | 57% | 57% |
| fills 75% | 29% | 57% | 57% | 57% |
| fills 100% | 29% | 57% | 57% | 57% |
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 67% | 83% | 83% | 83% |
| fills 50% | 42% | 75% | 75% | 83% |
| fills 75% | 17% | 58% | 58% | 58% |
| fills 100% | 8% | 33% | 42% | 50% |
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-01-12 | $398.29 | -5.14% | Open | — | — | 4% | 4% | 4% | 4% |
| 2025-10-30 | $481.59 | -6.56% | Open | 1d | — | 71% | 71% | 71% | 71% |
| 2025-04-08 | $232.95 | +5.67% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2024-08-30 | $287.01 | -7.32% | Filled | 13d | 32d | 34% | 34% | 34% | 66% |
| 2024-08-05 | $272.05 | -5.90% | Filled | 1d | 6d | 62% | 100% | 100% | 100% |
| 2024-08-01 | $237.46 | +5.28% | Open | — | — | 39% | 39% | 39% | 39% |
| 2024-06-24 | $165.70 | +32.39% | Open | — | — | 19% | 19% | 19% | 19% |
| 2024-02-15 | $164.15 | -8.62% | Open | 5d | — | 23% | 99% | 99% | 99% |
| 2023-09-14 | $211.65 | -5.50% | Open | — | — | 21% | 21% | 21% | 21% |
| 2023-07-17 | $197.10 | +5.53% | Filled | 1d | 6d | 56% | 100% | 100% | 100% |
| 2022-08-04 | $212.01 | -10.65% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2022-08-03 | $141.97 | +47.92% | Open | — | — | 18% | 31% | 31% | 31% |
| 2022-01-21 | $138.31 | -5.86% | Filled | 1d | 8d | 95% | 95% | 100% | 100% |
| 2022-01-20 | $138.62 | +5.44% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2021-12-22 | $199.59 | -5.24% | Open | 2d | — | 44% | 69% | 69% | 69% |
| 2021-11-18 | $172.73 | +5.53% | Filled | 2d | 2d | 40% | 100% | 100% | 100% |
| 2021-10-28 | $191.16 | -11.56% | Filled | 6d | 18d | 15% | 75% | 94% | 100% |
| 2021-09-28 | $193.85 | -7.01% | Filled | 3d | 4d | 29% | 100% | 100% | 100% |
| 2021-06-28 | $175.39 | -11.55% | Filled | 1d | 6d | 65% | 100% | 100% | 100% |
Alnylam Pharmaceuticals (ALNY) is trading at $295.00 in premarket, down $8.64 (+2.85%) from the previous close of $303.64.
Premarket trading for ALNY 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, 57% of ALNY gap-ups have fully filled and 58% of gap-downs have filled. Median time to fill is 2 trading days for gap-ups and 6 trading days for gap-downs.
No. ALNY has no unfilled gap events from the past 60 days; all recent gaps have been filled.
Based on 19 qualifying gap events over the past 5 years, the average 20-trading-day return after a ALNY gap up is +4.13%, and after a gap down is +0.2%.