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Contract OI history

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Mar 19, 2027 EXPIRATION

B $41.00 Call

B270319C00041000

Latest saved OI67Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $41.00 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. 67330 2026-10-02: 62 OI2026-10-05: 62 OI2026-10-06: 62 OI2026-10-07: 64 OI2026-10-08: 63 OI2026-10-09: 63 OI2026-10-13: 63 OI2026-10-14: 63 OI2026-10-15: 64 OI2026-10-16: 64 OI2026-10-21: 67 OI2026-10-23: 67 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, 2026Viewing670
Oct 21, 202667+3
Oct 16, 2026640
Oct 15, 202664+1
Oct 14, 2026630
Oct 13, 2026630
Oct 09, 2026630
Oct 08, 202663-1
Oct 07, 202664+2
Oct 06, 2026620
Oct 05, 2026620
Oct 02, 202662No prior observation