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Contract OI history

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Dec 15, 2028 EXPIRATION

B $50.00 Call

B281215C00050000

Latest saved OI330Oct 23, 2026
Last change-4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $50.00 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. 3391690 2026-10-02: 319 OI2026-10-05: 324 OI2026-10-06: 324 OI2026-10-07: 324 OI2026-10-08: 333 OI2026-10-09: 333 OI2026-10-13: 333 OI2026-10-14: 333 OI2026-10-15: 333 OI2026-10-16: 339 OI2026-10-21: 334 OI2026-10-23: 330 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, 2026Viewing330-4
Oct 21, 2026334-5
Oct 16, 2026339+6
Oct 15, 20263330
Oct 14, 20263330
Oct 13, 20263330
Oct 09, 20263330
Oct 08, 2026333+9
Oct 07, 20263240
Oct 06, 20263240
Oct 05, 2026324+5
Oct 02, 2026319No prior observation