OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

B $70.00 Call

B270319C00070000

Latest saved OI2,679Oct 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 $70.00 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. 2,6811,3400 2026-10-02: 478 OI2026-10-05: 2,083 OI2026-10-06: 2,083 OI2026-10-07: 2,079 OI2026-10-08: 2,681 OI2026-10-09: 2,681 OI2026-10-13: 2,679 OI2026-10-14: 2,679 OI2026-10-15: 2,679 OI2026-10-16: 2,679 OI2026-10-21: 2,679 OI2026-10-23: 2,679 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, 2026Viewing2,6790
Oct 21, 20262,6790
Oct 16, 20262,6790
Oct 15, 20262,6790
Oct 14, 20262,6790
Oct 13, 20262,679-2
Oct 09, 20262,6810
Oct 08, 20262,681+602
Oct 07, 20262,079-4
Oct 06, 20262,0830
Oct 05, 20262,083+1,605
Oct 02, 2026478No prior observation