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Contract OI history

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Oct 23, 2026 EXPIRATION

B $42.50 Call

B261023C00042500

Latest saved OI1,230Oct 23, 2026
Last change-18vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $42.50 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,2486240 2026-10-02: 0 OI2026-10-05: 193 OI2026-10-06: 193 OI2026-10-07: 393 OI2026-10-08: 336 OI2026-10-09: 336 OI2026-10-13: 351 OI2026-10-14: 242 OI2026-10-15: 239 OI2026-10-16: 243 OI2026-10-21: 1,248 OI2026-10-23: 1,230 OI Oct 02, 2026Oct 23, 2026

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

B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,230-18
Oct 21, 20261,248+1,005
Oct 16, 2026243+4
Oct 15, 2026239-3
Oct 14, 2026242-109
Oct 13, 2026351+15
Oct 09, 20263360
Oct 08, 2026336-57
Oct 07, 2026393+200
Oct 06, 20261930
Oct 05, 2026193+193
Oct 02, 20260No prior observation