OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

CB $330.00 Put

CB270115P00330000

Latest saved OI324Oct 23, 2026
Last change+4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CB $330.00 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. 3241620 2026-10-02: 270 OI2026-10-05: 265 OI2026-10-06: 283 OI2026-10-07: 283 OI2026-10-08: 283 OI2026-10-09: 283 OI2026-10-13: 282 OI2026-10-14: 312 OI2026-10-15: 318 OI2026-10-16: 317 OI2026-10-21: 320 OI2026-10-23: 324 OI Oct 02, 2026Oct 23, 2026

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

CB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing324+4
Oct 21, 2026320+3
Oct 16, 2026317-1
Oct 15, 2026318+6
Oct 14, 2026312+30
Oct 13, 2026282-1
Oct 09, 20262830
Oct 08, 20262830
Oct 07, 20262830
Oct 06, 2026283+18
Oct 05, 2026265-5
Oct 02, 2026270No prior observation