OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

B $30.00 Call

B270115C00030000

Latest saved OI41,453Oct 23, 2026
Last change-23vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $30.00 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. 41,49720,7480 2026-10-02: 41,497 OI2026-10-05: 41,489 OI2026-10-06: 41,489 OI2026-10-07: 41,489 OI2026-10-08: 41,488 OI2026-10-09: 41,478 OI2026-10-13: 41,478 OI2026-10-14: 41,476 OI2026-10-15: 41,476 OI2026-10-16: 41,476 OI2026-10-21: 41,476 OI2026-10-23: 41,453 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, 2026Viewing41,453-23
Oct 21, 202641,4760
Oct 16, 202641,4760
Oct 15, 202641,4760
Oct 14, 202641,476-2
Oct 13, 202641,4780
Oct 09, 202641,478-10
Oct 08, 202641,488-1
Oct 07, 202641,4890
Oct 06, 202641,4890
Oct 05, 202641,489-8
Oct 02, 202641,497No prior observation