Ionis Pharmaceuticals, Inc. (IONS:NASDAQ) closed at $42.94 on October 16, 2026, down 2.67% on the day. The stock trades 50.5% below its 52-week high of $86.74 and 2.0% above its 52-week low of $42.08. Over the past year, it lost 41.3%. Ionis Pharmaceuticals, Inc. is part of the Health Care sector (Major Pharmaceuticals).
| 5D | 1M | 3M | 6M | 1Y |
|---|---|---|---|---|
| -1.67% | -8.15% | -18.90% | -42.65% | -41.25% |
In 252 trading sessions since October 16, 2025, IONS closed higher on 119 days (47%). Its best day was August 3, 2026 (+5.25%) and its worst was July 9, 2026 (-23.90%). The stock moved 10% or more in a single session 1 time.
Isis Pharmaceuticals, Inc. engages in the discovery and development of antisense drugs using novel drug discovery platform. The company's flagship product includes the KYNAMRO injection, which is an apo-B synthesis inhibitor for patients with...
Find more stocks like IONS with the Spikes, Gaps, Breakouts and Performance Tracker scanners.
Based on end-of-day data. For information only, not investment advice.