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Contract OI history

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Mar 19, 2027 EXPIRATION

B $43.00 Call

B270319C00043000

Latest saved OI354Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $43.00 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. 5022510 2026-10-02: 502 OI2026-10-05: 502 OI2026-10-06: 502 OI2026-10-07: 502 OI2026-10-08: 502 OI2026-10-09: 497 OI2026-10-13: 440 OI2026-10-14: 440 OI2026-10-15: 440 OI2026-10-16: 441 OI2026-10-21: 355 OI2026-10-23: 354 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, 2026Viewing354-1
Oct 21, 2026355-86
Oct 16, 2026441+1
Oct 15, 20264400
Oct 14, 20264400
Oct 13, 2026440-57
Oct 09, 2026497-5
Oct 08, 20265020
Oct 07, 20265020
Oct 06, 20265020
Oct 05, 20265020
Oct 02, 2026502No prior observation