OITracker Cboe delayed data

Contract OI history

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Jun 17, 2027 EXPIRATION

B $45.00 Put

B270617P00045000

Latest saved OI2,566Oct 23, 2026
Last change-10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $45.00 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. 2,5761,2880 2026-10-02: 2,428 OI2026-10-05: 2,428 OI2026-10-06: 2,428 OI2026-10-07: 2,431 OI2026-10-08: 2,436 OI2026-10-09: 2,436 OI2026-10-13: 2,436 OI2026-10-14: 2,575 OI2026-10-15: 2,576 OI2026-10-16: 2,576 OI2026-10-21: 2,576 OI2026-10-23: 2,566 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, 2026Viewing2,566-10
Oct 21, 20262,5760
Oct 16, 20262,5760
Oct 15, 20262,576+1
Oct 14, 20262,575+139
Oct 13, 20262,4360
Oct 09, 20262,4360
Oct 08, 20262,436+5
Oct 07, 20262,431+3
Oct 06, 20262,4280
Oct 05, 20262,4280
Oct 02, 20262,428No prior observation