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Cytokinetics CYTK

US equityMarket cap rank #1586
$62.70 −$2.90 (-4.42%)
Market closed · Oct 5, 8:10 pm ET · Last extended-hours $62.70 0.00%
Open$65.60
Prev close$65.60
Day range$62.19 – $65.76
Volume3.23M
Market cap$8.72B
P/E (TTM)–
Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Short interest12.57% of floatDays to cover 10.6 · as of 15 Sep 2026
Short-sale volume share22.7%5-day average of daily volume

Short-sale volume as % of daily volume

14%19%24%28%Sep '26Sep '26Oct '26

Reported short interest has fallen from 12.94% to 12.57% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Short interest, by report

Report dateShares short% of floatDays to cover
15 Sep 2026 17,481,383 12.6% 10.6
31 Aug 2026 17,442,378 12.5% 9.7
14 Aug 2026 16,323,712 11.7% 7.7
31 Jul 2026 15,303,504 11.3% 9.6
15 Jul 2026 17,051,981 12.6% 9.0
30 Jun 2026 17,573,660 12.9% 5.3

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