OITracker Cboe delayed data

Contract OI history

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Nov 27, 2026 EXPIRATION

OPEN $2.50 Put

OPEN261127P00002500

Latest saved OI237Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
OPEN $2.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2371180 2026-10-09: 11 OI2026-10-13: 25 OI2026-10-14: 25 OI2026-10-15: 126 OI2026-10-16: 126 OI2026-10-21: 237 OI2026-10-23: 237 OI Oct 09, 2026Oct 23, 2026

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

OPEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2370
Oct 21, 2026237+111
Oct 16, 20261260
Oct 15, 2026126+101
Oct 14, 2026250
Oct 13, 202625+14
Oct 09, 202611No prior observation