156.65 USD
PREVIOUS CLOSE
ALNY Stock Premarket
Alnylam Pharmaceuticals, Inc.
ALNYNASDAQ • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
📅 ALNY is expected to report earnings around Feb 11, 2027 before the open (estimated), with an estimated EPS of $1.72. 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 20 qualifying gap events (gaps of 5% or more at the open) — 8 gap-ups and 12 gap-downs. Gap-ups averaged +15.6%, 63% have fully filled, median time to fill 1 trading day. Gap-downs averaged -9%, 42% have fully filled, median time to fill 6 trading days. Most recent: a -20.1% gap down on Oct 29, 2026, still unfilled. ALNY has 1 unfilled gap from the past 60 days — a -20.1% gap down on Oct 29, 2026, currently 36% retraced. Average 20-trading-day return after a ALNY gap up: -1.75%. After a gap down: -1.25%.
Gap Ups8 events
Fill Rate
62.5%
Avg Gap
15.6%
Avg 50% Fill
1d
Avg Fill
1d
Gap Downs12 events
Fill Rate
41.7%
Avg Gap
9.0%
Avg 50% Fill
1d
Avg Fill
6d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 75% | 88% | 88% | 88% |
| fills 50% | 50% | 63% | 63% | 63% |
| fills 75% | 38% | 63% | 63% | 63% |
| fills 100% | 38% | 63% | 63% | 63% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 67% | 75% | 75% | 83% |
| fills 50% | 42% | 58% | 58% | 67% |
| fills 75% | 25% | 42% | 42% | 42% |
| fills 100% | 17% | 25% | 33% | 33% |
Active Unfilled Gaps (past 60 days)
17 days ago
2026-10-29
Gap %
-20.14%
Gap From
$232.40
% vs Current
+40.81%
retraced 36% to $202.35
Complete Gap History — 20 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 17 days ago | $232.40 | -20.14% | Open | — | — | 36% | 36% | 36% | 36% |
| 2026-08-28 | $236.56 | -5.11% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2026-07-30 | $286.62 | -21.49% | Open | 25d | — | 8% | 15% | 15% | 31% |
| 2026-07-09 | $323.50 | +17.00% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 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% |
Related: ALNY quote & chart · After hours · Technical analysis · Fundamentals · Earnings · Short interest
Frequently Asked Questions
What is ALNY's premarket price?
No premarket activity has been recorded yet for ALNY today. The previous regular-session close was $156.65.
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, 63% of ALNY gap-ups have fully filled and 42% of gap-downs have filled. Median time to fill is 1 trading days for gap-ups and 6 trading days for gap-downs.
Does ALNY have any unfilled gaps?
Yes. ALNY has 1 unfilled gap from the past 60 days. The largest is a -20.1% gap down from Oct 29, 2026 and is currently 36% retraced.
What's the average return after a ALNY gap?
Based on 20 qualifying gap events over the past 5 years, the average 20-trading-day return after a ALNY gap up is -1.75%, and after a gap down is -1.25%.
When does ALNY report earnings?
ALNY is expected to report earnings around Feb 11, 2027 before the open (estimated), with an estimated EPS of $1.72.