76.67 USD
↗ 0.78 (1.03%)PRE MARKET (AS OF 05:29 AM EDT)
IONS Stock Premarket
Ionis Pharmaceuticals, Inc. Common Stock
IONSNASDAQ • USD
Market: CLOSED
Premarket trading runs 4:00 AM – 9:30 AM ET.
IONS last traded at $76.67 in premarket, up $0.78 (1.03%) from its previous close of $75.89.
📅 IONS is expected to report earnings around Aug 5, 2026 before the open (estimated), with an estimated EPS of $-0.92. 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 9 qualifying gap events (gaps of 5% or more at the open) — 5 gap-ups and 4 gap-downs. Gap-ups averaged +8.8%, 40% have fully filled, median time to fill 3.5 trading days. Gap-downs averaged -7.8%, 50% have fully filled, median time to fill 13 trading days. Most recent: a +15.3% gap up on Sep 2, 2025, still unfilled. Average 20-trading-day return after a IONS gap up: +7.71%. After a gap down: +2.02%.
Gap Ups5 events
Fill Rate
40.0%
Avg Gap
8.8%
Avg 50% Fill
1d
Avg Fill
3.5d
Gap Downs4 events
Fill Rate
50.0%
Avg Gap
7.8%
Avg 50% Fill
5d
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% | 50% | 50% | 50% | 75% |
| fills 50% | 25% | 50% | 50% | 75% |
| fills 75% | 25% | 25% | 25% | 50% |
| fills 100% | 25% | 25% | 25% | 25% |
Complete Gap History — 9 events
| Date | Gap From | Gap % | Status | Days to 50% | Days to Fill | % of Gap Filled After | |||
|---|---|---|---|---|---|---|---|---|---|
| 1 day | 1 week | 2 week | 4 week | ||||||
| 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% |
| 2021-10-18 | $35.10 | -6.30% | Open | 13d | — | 10% | 10% | 10% | 100% |
Frequently Asked Questions
What is IONS's premarket price?
Ionis Pharmaceuticals (IONS) is trading at $76.67 in premarket, up $0.78 (1.03%) from the previous close of $75.89.
Why is IONS moving in premarket?
Ionis Pharmaceuticals (IONS) is up 1.03% 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 IONS premarket headlines and gap history below for the likely catalyst.
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 50% 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 9 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 +2.02%.
When does IONS report earnings?
IONS is expected to report earnings around Aug 5, 2026 before the open (estimated), with an estimated EPS of $-0.92.