296.59 USD
↗ 3.42 (1.17%)PRE MARKET (AS OF 05:29 AM EDT)
ALNY Stock Premarket
Alnylam Pharmaceuticals, Inc.
ALNYNASDAQ • USD
Market: OPEN
Premarket trading runs 4:00 AM – 9:30 AM ET.
ALNY last traded at $296.59 in premarket, up $3.42 (1.17%) from its previous close of $293.17.
📅 ALNY is expected to report earnings around Jul 30, 2026 before the open (estimated), with an estimated EPS of $2.10. ALNY earnings details →
ALNY Premarket Chart
ALNY Premarket News
Gap Analytics — 5-year history, 5% minimum gap
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%.
Gap Ups7 events
Fill Rate
57.1%
Avg Gap
15.4%
Avg 50% Fill
1d
Avg Fill
1.5d
Gap Downs12 events
Fill Rate
58.3%
Avg Gap
7.6%
Avg 50% Fill
1.5d
Avg Fill
6d
Avg Gap Fill by Timeframes
Gap Ups
| 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% |
Gap Downs
| 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% |
Complete Gap History — 19 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-01-12 | $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% |
Frequently Asked Questions
What is ALNY's premarket price?
Alnylam Pharmaceuticals (ALNY) is trading at $296.59 in premarket, up $3.42 (1.17%) from the previous close of $293.17.
Why is ALNY moving in premarket?
Alnylam Pharmaceuticals (ALNY) is up 1.17% 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 ALNY premarket headlines and gap history below for the likely catalyst.
When does ALNY premarket trading start?
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.
How often does ALNY fill its gaps?
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.
Does ALNY have any unfilled gaps?
No. ALNY has no unfilled gap events from the past 60 days; all recent gaps have been filled.
What's the average return after a ALNY gap?
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%.
When does ALNY report earnings?
ALNY is expected to report earnings around Jul 30, 2026 before the open (estimated), with an estimated EPS of $2.10.