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Contract OI history

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Oct 23, 2026 EXPIRATION

B $41.50 Call

B261023C00041500

Latest saved OI238Oct 23, 2026
Last change-21vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $41.50 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. 2591290 2026-10-02: 0 OI2026-10-05: 3 OI2026-10-06: 3 OI2026-10-07: 3 OI2026-10-08: 20 OI2026-10-09: 24 OI2026-10-13: 25 OI2026-10-14: 30 OI2026-10-15: 34 OI2026-10-16: 40 OI2026-10-21: 259 OI2026-10-23: 238 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, 2026Viewing238-21
Oct 21, 2026259+219
Oct 16, 202640+6
Oct 15, 202634+4
Oct 14, 202630+5
Oct 13, 202625+1
Oct 09, 202624+4
Oct 08, 202620+17
Oct 07, 202630
Oct 06, 202630
Oct 05, 20263+3
Oct 02, 20260No prior observation