OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

DOW $20.00 Put

DOW280121P00020000

Latest saved OI3,290Oct 23, 2026
Last change-3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
DOW $20.00 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. 3,3201,6600 2026-10-02: 3,319 OI2026-10-05: 3,318 OI2026-10-06: 3,318 OI2026-10-07: 3,320 OI2026-10-08: 3,320 OI2026-10-09: 3,320 OI2026-10-13: 3,317 OI2026-10-14: 3,317 OI2026-10-15: 3,315 OI2026-10-16: 3,294 OI2026-10-21: 3,293 OI2026-10-23: 3,290 OI Oct 02, 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, 2026Viewing3,290-3
Oct 21, 20263,293-1
Oct 16, 20263,294-21
Oct 15, 20263,315-2
Oct 14, 20263,3170
Oct 13, 20263,317-3
Oct 09, 20263,3200
Oct 08, 20263,3200
Oct 07, 20263,320+2
Oct 06, 20263,3180
Oct 05, 20263,318-1
Oct 02, 20263,319No prior observation