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Smart Investors Daily
IO

NASDAQ · IONS

Ionis Pharmaceuticals, Inc.

Healthcare · Biotechnology

$47.25

Down-$0.67 (-1.41%)

Updated Sep 16, 2026, 4:17 PM

SID Score

4.3/10

Composite research score

Smart Money

59/100

Neutral

Market cap
12.57B
P/E ratio
-49.61
Dividend yield
0.00%
52-week range
$50.01 – $86.74
Volume
6.81M
Avg. volume
2.43M

Price performance

IONS price history

1M range · 20 trading sessions · Daily adjusted prices

IONS closed at $47.25 after 20 trading sessions, down 20.75% for the selected period.

Last close
$47.25
Period change
-20.75%
Period low
$47.25
Period high
$63.57
Daily close
View OHLC price history
IONS OHLC price history, latest 40 sessions
DateOpenHighLowCloseVolume
Sep 15, 2026$51.37$51.37$46.715$47.256.81M
Sep 14, 2026$54.88$55.50$51.31$51.445.97M
Sep 11, 2026$55.94$56.16$54.16$54.212.18M
Sep 10, 2026$55.75$55.77$54.91$55.653.06M
Sep 9, 2026$56.38$56.9569$55.695$56.023.04M
Sep 8, 2026$52.15$57.4292$52.15$56.719.18M
Sep 4, 2026$58.36$58.96$57.78$58.092.67M
Sep 3, 2026$60.42$60.42$57.47$58.134.35M
Sep 2, 2026$60.25$61.77$59.775$61.331.85M
Sep 1, 2026$60.37$60.99$59.78$59.881.87M
Aug 31, 2026$61.065$61.065$59.70$60.362.02M
Aug 28, 2026$60.62$61.69$60.35$61.051.85M
Aug 27, 2026$63.48$63.48$62.34$62.431.63M
Aug 26, 2026$63.50$63.55$62.44$63.362.15M
Aug 25, 2026$62.53$64.19$62.19$63.572.44M
Aug 24, 2026$60.535$62.07$59.70$62.042.21M
Aug 21, 2026$59.64$60.915$59.0601$59.742.72M
Aug 20, 2026$60.025$60.41$58.60$58.762.12M
Aug 19, 2026$60.11$61.355$59.61$60.803.14M
Aug 18, 2026$58.405$60.19$58.0237$59.623.19M

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