OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

DOW $25.50 Put

DOW261030P00025500

Latest saved OI85Oct 23, 2026
Last change+11vs previous saved observation
Saved market days6Oct 13, 2026 onwards
Daily open interest Hover a point for its date and OI
DOW $25.50 put open interest history 6 saved observations from 2026-10-13 to 2026-10-23. Exact values and changes are listed in the table below. 85420 2026-10-13: 1 OI2026-10-14: 1 OI2026-10-15: 1 OI2026-10-16: 31 OI2026-10-21: 74 OI2026-10-23: 85 OI Oct 13, 2026Oct 23, 2026

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

DOW contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing85+11
Oct 21, 202674+43
Oct 16, 202631+30
Oct 15, 202610
Oct 14, 202610
Oct 13, 20261No prior observation