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Contract OI history

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Nov 20, 2026 EXPIRATION

BKSY $25.00 Put

BKSY261120P00025000

Latest saved OI181Oct 23, 2026
Last change-3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BKSY $25.00 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. 2121060 2026-10-02: 209 OI2026-10-05: 208 OI2026-10-06: 208 OI2026-10-07: 212 OI2026-10-08: 212 OI2026-10-09: 207 OI2026-10-13: 194 OI2026-10-14: 194 OI2026-10-15: 186 OI2026-10-16: 185 OI2026-10-21: 184 OI2026-10-23: 181 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, 2026Viewing181-3
Oct 21, 2026184-1
Oct 16, 2026185-1
Oct 15, 2026186-8
Oct 14, 20261940
Oct 13, 2026194-13
Oct 09, 2026207-5
Oct 08, 20262120
Oct 07, 2026212+4
Oct 06, 20262080
Oct 05, 2026208-1
Oct 02, 2026209No prior observation