OITracker Cboe delayed data

Contract OI history

Back to XXI

Jan 15, 2027 EXPIRATION

XXI $5.00 Put

XXI270115P00005000

Latest saved OI285Oct 23, 2026
Last change+6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
XXI $5.00 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. 2851420 2026-10-02: 258 OI2026-10-05: 258 OI2026-10-06: 250 OI2026-10-07: 250 OI2026-10-08: 250 OI2026-10-09: 229 OI2026-10-13: 229 OI2026-10-14: 227 OI2026-10-15: 277 OI2026-10-16: 277 OI2026-10-21: 279 OI2026-10-23: 285 OI Oct 02, 2026Oct 23, 2026

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

XXI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026285+6
Oct 21, 2026Viewing279+2
Oct 16, 20262770
Oct 15, 2026277+50
Oct 14, 2026227-2
Oct 13, 20262290
Oct 09, 2026229-21
Oct 08, 20262500
Oct 07, 20262500
Oct 06, 2026250-8
Oct 05, 20262580
Oct 02, 2026258No prior observation