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Contract OI history

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Jan 15, 2027 EXPIRATION

B $43.00 Call

B270115C00043000

Latest saved OI329Oct 23, 2026
Last change+20vs 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. 3291640 2026-10-02: 200 OI2026-10-05: 200 OI2026-10-06: 200 OI2026-10-07: 200 OI2026-10-08: 279 OI2026-10-09: 289 OI2026-10-13: 306 OI2026-10-14: 307 OI2026-10-15: 307 OI2026-10-16: 309 OI2026-10-21: 309 OI2026-10-23: 329 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, 2026Viewing329+20
Oct 21, 20263090
Oct 16, 2026309+2
Oct 15, 20263070
Oct 14, 2026307+1
Oct 13, 2026306+17
Oct 09, 2026289+10
Oct 08, 2026279+79
Oct 07, 20262000
Oct 06, 20262000
Oct 05, 20262000
Oct 02, 2026200No prior observation