OITracker Cboe delayed data

Contract OI history

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May 21, 2027 EXPIRATION

BOT $25.00 Put

BOT270521P00025000

Latest saved OI138Oct 23, 2026
Last change+30vs previous saved observation
Saved market days8Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
BOT $25.00 put open interest history 8 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 138690 2026-10-08: 4 OI2026-10-09: 10 OI2026-10-13: 46 OI2026-10-14: 47 OI2026-10-15: 47 OI2026-10-16: 47 OI2026-10-20: 108 OI2026-10-23: 138 OI Oct 08, 2026Oct 23, 2026

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

BOT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing138+30
Oct 20, 2026108+61
Oct 16, 2026470
Oct 15, 2026470
Oct 14, 202647+1
Oct 13, 202646+36
Oct 09, 202610+6
Oct 08, 20264No prior observation