OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

DOW $20.00 Put

DOW270319P00020000

Latest saved OI487Oct 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. 5002500 2026-10-02: 494 OI2026-10-05: 493 OI2026-10-06: 493 OI2026-10-07: 500 OI2026-10-08: 500 OI2026-10-09: 490 OI2026-10-13: 491 OI2026-10-14: 491 OI2026-10-15: 491 OI2026-10-16: 491 OI2026-10-21: 490 OI2026-10-23: 487 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, 2026Viewing487-3
Oct 21, 2026490-1
Oct 16, 20264910
Oct 15, 20264910
Oct 14, 20264910
Oct 13, 2026491+1
Oct 09, 2026490-10
Oct 08, 20265000
Oct 07, 2026500+7
Oct 06, 20264930
Oct 05, 2026493-1
Oct 02, 2026494No prior observation