27.31 USD
PREVIOUS CLOSE
IONS Stock Premarket
Ionis Pharmaceuticals, Inc. Common Stock
IONSNASDAQ • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
📅 IONS is expected to report earnings around Feb 24, 2027 before the open (estimated), with an estimated EPS of $-1.35. IONS earnings details →
IONS Premarket Chart
IONS Premarket News
Gap Analytics — 5-year history, 5% minimum gap
Over the past 5 years, IONS has had 10 qualifying gap events (gaps of 5% or more at the open) — 5 gap-ups and 5 gap-downs. Gap-ups averaged +8.8%, 40% have fully filled, median time to fill 3.5 trading days. Gap-downs averaged -11%, 40% have fully filled, median time to fill 13 trading days. Most recent: a -10.2% gap down on Sep 8, 2026, still unfilled. Average 20-trading-day return after a IONS gap up: +7.71%. After a gap down: -2.8%.
Gap Ups5 events
Fill Rate
40.0%
Avg Gap
8.8%
Avg 50% Fill
1d
Avg Fill
3.5d
Gap Downs5 events
Fill Rate
40.0%
Avg Gap
11.0%
Avg 50% Fill
1d
Avg Fill
13d
Avg Gap Fill by Timeframes
Gap Ups
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 60% | 60% | 60% | 60% |
| fills 50% | 60% | 60% | 60% | 60% |
| fills 75% | 40% | 60% | 60% | 60% |
| fills 100% | 20% | 40% | 40% | 40% |
Gap Downs
| 1 day | 1 week | 2 week | 4 week | |
|---|---|---|---|---|
| fills 25% | 60% | 60% | 60% | 60% |
| fills 50% | 40% | 60% | 60% | 60% |
| fills 75% | 40% | 40% | 40% | 40% |
| fills 100% | 20% | 20% | 20% | 20% |
Complete Gap History — 10 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 2026-09-08 | $58.09 | -10.23% | Open | 1d | — | 89% | 89% | 89% | 89% |
| 2026-07-09 | $84.46 | -19.75% | Open | — | — | 15% | 15% | 15% | 15% |
| 2025-09-02 | $42.63 | +15.26% | Open | — | — | 0% | 0% | 0% | 0% |
| 2025-07-30 | $41.48 | +8.41% | Filled | 1d | 6d | 58% | 100% | 100% | 100% |
| 2025-04-30 | $29.81 | +6.61% | Open | 1d | — | 98% | 98% | 98% | 98% |
| 2025-02-19 | $31.95 | +7.98% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
| 2024-09-10 | $48.33 | -7.95% | Open | — | — | 3% | 3% | 3% | 3% |
| 2023-06-07 | $43.33 | -6.55% | Filled | 5d | 25d | 39% | 61% | 61% | 74% |
| 2022-08-03 | $37.18 | +5.49% | Open | — | — | 11% | 11% | 11% | 11% |
| 2022-01-31 | $31.68 | -10.54% | Filled | 1d | 1d | 100% | 100% | 100% | 100% |
Related: IONS quote & chart · After hours · Technical analysis · Fundamentals · Earnings · Short interest
Frequently Asked Questions
What is IONS's premarket price?
No premarket activity has been recorded yet for IONS today. The previous regular-session close was $27.31.
When does IONS premarket trading start?
Premarket trading for IONS 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 IONS fill its gaps?
Over the past 5 years, 40% of IONS gap-ups have fully filled and 40% of gap-downs have filled. Median time to fill is 4 trading days for gap-ups and 13 trading days for gap-downs.
Does IONS have any unfilled gaps?
No. IONS has no unfilled gap events from the past 60 days; all recent gaps have been filled.
What's the average return after a IONS gap?
Based on 10 qualifying gap events over the past 5 years, the average 20-trading-day return after a IONS gap up is +7.71%, and after a gap down is -2.8%.
When does IONS report earnings?
IONS is expected to report earnings around Feb 24, 2027 before the open (estimated), with an estimated EPS of $-1.35.