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Ionis Pharmaceuticals (IONS) Stock Chart & Stock Price History

Ionis Pharmaceuticals logo
$42.75 +0.58 (+1.38%)
Closing price 04:00 PM Eastern
Extended Trading
$42.62 -0.13 (-0.31%)
As of 06:21 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more.
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Ionis Pharmaceuticals Stock Price Performance

The Ionis Pharmaceuticals (IONS) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 11.58%, with a year-to-date return of 22.28%. In the past month, the stock has increased 1.21%, reflecting recent market activity.

As of the latest close, Ionis Pharmaceuticals traded at $42.17 with a market cap of $6.72 billion and volume of 2.60 million shares. Five years ago, the stock traded at $52.61, representing a 18.74% decrease over that period. At the time, it had a market cap of $7.39 billion and a volume of 384,791 shares.

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5 Day
Performance
+0.14%
1 Month
Performance
+1.21%
3 Month
Performance
+28.30%
Year-To-Date
Performance
+22.28%
1 Year
Performance
-11.58%
5 Year
Performance
-18.74%

IONS Stock Chart for Wednesday, August, 27, 2025

IONS Chart by TradingView

Ionis Pharmaceuticals Stock Price History

Export to Excel
DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
08/26/2025$41.82$42.17
+0.84%		$42.57$41.712.60 million shs$6.72 billion
08/25/2025$42.69$41.82
-2.04%		$43.06$41.791.57 million shs$6.67 billion
08/22/2025$43.24$42.69
-1.27%		$43.72$42.091.86 million shs$6.80 billion
08/21/2025$42.81$43.24
+1.00%		$44.99$42.471.87 million shs$6.89 billion
08/20/2025$42.48$42.81
+0.78%		$43.26$41.962.28 million shs$6.82 billion
08/19/2025$43.43$42.48
-2.19%		$43.90$42.271.95 million shs$6.77 billion
08/18/2025$43.78$43.43
-0.80%		$44.29$43.411.50 million shs$6.92 billion
08/15/2025$42.85$43.78
+2.17%		$43.82$42.801.60 million shs$6.98 billion
08/14/2025$43.10$42.85
-0.58%		$43.40$42.441.58 million shs$6.83 billion
08/13/2025$41.41$43.10
+4.08%		$43.22$41.543.02 million shs$6.87 billion
08/12/2025$40.84$41.41
+1.40%		$41.42$40.371.49 million shs$6.60 billion
08/11/2025$41.64$40.84
-1.92%		$41.93$40.791.80 million shs$6.51 billion
08/08/2025$41.05$41.64
+1.44%		$41.76$40.861.74 million shs$6.64 billion
08/07/2025$40.69$41.05
+0.88%		$41.13$40.032.74 million shs$6.54 billion
08/06/2025$43.05$40.69
-5.48%		$42.87$40.662.47 million shs$6.49 billion
08/05/2025$43.45$43.05
-0.92%		$43.52$42.512.82 million shs$6.86 billion
08/04/2025$43.03$43.45
+0.98%		$43.74$42.262.31 million shs$6.93 billion
08/01/2025$42.98$43.03
+0.12%		$43.40$42.282.32 million shs$6.85 billion
07/31/2025$43.37$42.98
-0.90%		$44.98$42.333.54 million shs$6.84 billion
07/30/2025$41.48$43.37
+4.56%		$45.66$42.954.16 million shs$6.90 billion
07/29/2025$41.17$41.48
+0.75%		$41.65$40.811.50 million shs$6.60 billion
07/28/2025$42.24$41.17
-2.53%		$42.49$41.151.64 million shs$6.55 billion
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This page (NASDAQ:IONS) was last updated on 8/27/2025 by MarketBeat.com Staff
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