OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

OC $100.00 Put

OC270521P00100000

Latest saved OI455Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
OC $100.00 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. 4552270 2026-10-02: 4 OI2026-10-05: 4 OI2026-10-06: 4 OI2026-10-07: 4 OI2026-10-08: 4 OI2026-10-09: 4 OI2026-10-13: 290 OI2026-10-14: 309 OI2026-10-15: 453 OI2026-10-16: 453 OI2026-10-21: 455 OI2026-10-23: 455 OI Oct 02, 2026Oct 23, 2026

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

OC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20264550
Oct 21, 2026Viewing455+2
Oct 16, 20264530
Oct 15, 2026453+144
Oct 14, 2026309+19
Oct 13, 2026290+286
Oct 09, 202640
Oct 08, 202640
Oct 07, 202640
Oct 06, 202640
Oct 05, 202640
Oct 02, 20264No prior observation