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IONS
Ionis Pharmaceuticals, Inc. Common Stock
stock NASDAQ

At Close
May 30, 2025 3:59:56 PM EDT
33.49USD+0.090%(+0.03)1,654,650
0.00Bid   0.00Ask   0.00Spread
Pre-market
May 27, 2025 8:36:30 AM EDT
34.61USD+3.430%(+1.15)0
After-hours
May 30, 2025 4:05:30 PM EDT
33.51USD0.000%(0.00)23,034
OverviewOption ChainMax PainOptionsHistoricalExchange VolumeDark Pool LevelsDark Pool PrintsExchangesShort VolumeShort Interest - DailyShort InterestBorrow Fee (CTB)Failure to Deliver (FTD)Short InterestTrendsNewsMore
for Daily Short Interest
IONS Short Interest (SI) Latest - Official
As of 2025-05-15, there were 15,266,156 shares short with a short interest of 9.59%.

IONS Short Interest - Official
 

IONS Short Position Change - Official
 
IONS Short Interest - Official chartexchange.com
Historical data is split-adjusted.
1) Data from Finra. Finra publishes an updated file every two weeks.
2) Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.



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