OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

BN $36.00 Put

BN270521P00036000

Latest saved OI332Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BN $36.00 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. 3331660 2026-10-02: 17 OI2026-10-05: 17 OI2026-10-06: 17 OI2026-10-07: 17 OI2026-10-08: 18 OI2026-10-09: 18 OI2026-10-13: 331 OI2026-10-14: 331 OI2026-10-15: 333 OI2026-10-16: 333 OI2026-10-21: 332 OI2026-10-23: 332 OI Oct 02, 2026Oct 23, 2026

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

BN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3320
Oct 21, 2026332-1
Oct 16, 20263330
Oct 15, 2026333+2
Oct 14, 20263310
Oct 13, 2026331+313
Oct 09, 2026180
Oct 08, 202618+1
Oct 07, 2026170
Oct 06, 2026170
Oct 05, 2026170
Oct 02, 202617No prior observation