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Contract OI history

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Jan 15, 2027 EXPIRATION

BKSY $12.50 Put

BKSY270115P00012500

Latest saved OI207Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BKSY $12.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2401200 2026-10-02: 74 OI2026-10-05: 74 OI2026-10-06: 74 OI2026-10-07: 74 OI2026-10-08: 74 OI2026-10-09: 74 OI2026-10-13: 104 OI2026-10-14: 104 OI2026-10-15: 105 OI2026-10-16: 240 OI2026-10-21: 207 OI2026-10-23: 207 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BKSY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2070
Oct 21, 2026207-33
Oct 16, 2026240+135
Oct 15, 2026105+1
Oct 14, 20261040
Oct 13, 2026104+30
Oct 09, 2026740
Oct 08, 2026740
Oct 07, 2026740
Oct 06, 2026740
Oct 05, 2026740
Oct 02, 202674No prior observation