Ionis Pharmaceuticals Inc. (IONS)
Showing Closing Date Range from Oct 2 to Oct 30, 2026 compared to Sep 3 to Oct 1, 2026.
Compare Last 28 Days with Previous Period
Investor Relations:ionis.com
Current Period Close
$43.52
Oct 02, 2026 - Oct 30, 2026
Previous Period Close
$44.00
Sep 03, 2026 - Oct 01, 2026
Net Comparison Delta
$-0.48 (-1.09%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(21 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 30, 2026 | $43.52 | - | - | - |
| Oct 29, 2026 | $44.39 | - | - | - |
| Oct 28, 2026 | $44.90 | - | - | - |
| Oct 27, 2026 | $43.96 | Oct 01, 2026 | $44.00 | -0.09% |
| Oct 26, 2026 | $43.42 | Sep 30, 2026 | $44.65 | -2.75% |
| Oct 23, 2026 | $42.93 | Sep 29, 2026 | $45.89 | -6.45% |
| Oct 22, 2026 | $43.91 | Sep 28, 2026 | $45.57 | -3.64% |
| Oct 21, 2026 | $44.27 | Sep 25, 2026 | $44.50 | -0.52% |
| Oct 20, 2026 | $45.40 | Sep 23, 2026 | $43.93 | +3.35% |
| Oct 19, 2026 | $44.38 | Sep 21, 2026 | $44.90 | -1.16% |
| Oct 16, 2026 | $42.94 | Sep 18, 2026 | $44.44 | -3.38% |
| Oct 15, 2026 | $44.12 | Sep 17, 2026 | $46.75 | -5.63% |
| Oct 14, 2026 | $42.70 | Sep 16, 2026 | $44.84 | -4.77% |
| Oct 13, 2026 | $42.38 | Sep 15, 2026 | $47.25 | -10.31% |
| Oct 12, 2026 | $43.67 | Sep 14, 2026 | $51.44 | -15.10% |
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