OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

III $5.00 Put

III261120P00005000

Latest saved OI248Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
III $5.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 3211600 2026-10-08: 321 OI2026-10-09: 321 OI2026-10-13: 321 OI2026-10-15: 321 OI2026-10-16: 321 OI2026-10-20: 247 OI2026-10-23: 248 OI Oct 08, 2026Oct 23, 2026

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

III contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026248+1
Oct 20, 2026Viewing247-74
Oct 16, 20263210
Oct 15, 20263210
Oct 13, 20263210
Oct 09, 20263210
Oct 08, 2026321No prior observation