OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

BB $5.50 Put

BB261218P00005500

Latest saved OI497Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BB $5.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5522760 2026-10-02: 552 OI2026-10-05: 521 OI2026-10-06: 518 OI2026-10-07: 518 OI2026-10-08: 518 OI2026-10-09: 518 OI2026-10-13: 520 OI2026-10-14: 520 OI2026-10-15: 520 OI2026-10-16: 500 OI2026-10-21: 499 OI2026-10-23: 497 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing497-2
Oct 21, 2026499-1
Oct 16, 2026500-20
Oct 15, 20265200
Oct 14, 20265200
Oct 13, 2026520+2
Oct 09, 20265180
Oct 08, 20265180
Oct 07, 20265180
Oct 06, 2026518-3
Oct 05, 2026521-31
Oct 02, 2026552No prior observation