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Contract OI history

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Nov 20, 2026 EXPIRATION

BKSY $15.00 Put

BKSY261120P00015000

Latest saved OI417Oct 23, 2026
Last change+187vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BKSY $15.00 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. 4172080 2026-10-02: 147 OI2026-10-05: 147 OI2026-10-06: 140 OI2026-10-07: 140 OI2026-10-08: 140 OI2026-10-09: 152 OI2026-10-13: 157 OI2026-10-14: 157 OI2026-10-15: 200 OI2026-10-16: 203 OI2026-10-21: 230 OI2026-10-23: 417 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, 2026Viewing417+187
Oct 21, 2026230+27
Oct 16, 2026203+3
Oct 15, 2026200+43
Oct 14, 20261570
Oct 13, 2026157+5
Oct 09, 2026152+12
Oct 08, 20261400
Oct 07, 20261400
Oct 06, 2026140-7
Oct 05, 20261470
Oct 02, 2026147No prior observation