Ionis Pharmaceuticals, Inc. (IONS) Stock Chart
IONS price chart
Daily prices adjusted for splits and dividends. 1D and 5D show delayed intraday prices. Markers: E earnings, D dividend, S split.
Technical snapshot
Key levels & statistics
IONS performance vs the market
Total return, dividends reinvestedIONS monthly returns
IONS historical prices
IONS dividends & splits
About the IONS chart
Ionis Pharmaceuticals (IONS) closed at $42.94 on October 16, 2026, down 45.7% so far this year. The stock is trading 37.4% below its 200-day moving average of $68.60, which technical analysts usually read as a long-term downtrend. Over the past year IONS returned −41.2% including dividends, behind the S&P 500 (+16.8%).
This page charts the full trading history of Ionis Pharmaceuticals, Inc. stock. Daily prices come from EODHD and are adjusted for stock splits and dividends, so returns over long periods are comparable. For the latest quote, company profile, earnings and news, see the IONS stock overview.
IONS chart FAQ
What is Ionis Pharmaceuticals's all-time high stock price?
The highest closing price for IONS was $86.50 on February 6, 2026 (adjusted for stock splits). As of the October 16, 2026 close it traded 50.4% below that level.
What is the 52-week range of IONS stock?
Over the 52 weeks to October 16, 2026, IONS traded between an intraday low of $42.08 on October 14, 2026 and an intraday high of $86.74 on February 5, 2026.
Is IONS above its 200-day moving average?
No. On October 16, 2026 IONS closed at $42.94, 37.4% below its 200-day simple moving average of $68.60. The 50-day average was $51.73.
How has IONS stock performed compared with the S&P 500?
Including reinvested dividends, IONS returned −41.2% over the past year, compared with +16.8% for the S&P 500 (SPY). Over five years the figures were +22.3% and +83.0%.
Does Ionis Pharmaceuticals pay a dividend?
Ionis Pharmaceuticals has not paid a dividend in the past 12 months.
How do I read the IONS chart?
Pick a time range above the chart and choose candlesticks, a line or an area chart. Moving averages, Bollinger Bands, volume, RSI and MACD can be switched on with the indicator buttons, and "Compare" plots IONS against the S&P 500, its sector or a competitor as a percentage change. Chart prices are adjusted for splits and dividends.