Short Interest Chart

View Short Interest for SFRX.
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Sep '18
Jan '19
May '19
 
285.00
270.00
255.00
240.00
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Historical Short Interest Data

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Date % of Float Short % of SO Short Days to Cover Short Interest
Aug 06, 2026 -- -- -- --
Aug 05, 2026 -- -- -- --
Aug 04, 2026 -- -- -- --
Aug 03, 2026 -- -- -- --
Jul 15, 2026 -- -- -- --
Jul 14, 2026 -- -- -- --
Jul 13, 2026 -- -- -- --
Jul 10, 2026 -- -- -- --
Jul 09, 2026 -- -- -- --
Jul 08, 2026 -- -- -- --
Jul 07, 2026 -- -- -- --
May 13, 2026 -- -- -- --
May 12, 2026 -- -- -- --
May 08, 2026 -- -- -- --
May 07, 2026 -- -- -- --
May 06, 2026 -- -- -- --
May 05, 2026 -- -- -- --
Apr 30, 2026 -- -- -- --
Apr 29, 2026 -- -- -- --
Apr 28, 2026 -- -- -- --
Apr 27, 2026 -- -- -- --
Apr 24, 2026 -- -- -- --
Apr 23, 2026 -- -- -- --
Apr 22, 2026 -- -- -- --
Apr 17, 2026 -- -- -- --

Short Interest Definition

The number of shares that have been sold short but have yet to be covered or closed out.

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Short Interest Range, Past 5 Years

View Short Interest Range, Past 5 Years
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Minimum
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Maximum
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Average
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Median