OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

NAT $3.50 Put

NAT270115P00003500

Latest saved OI398Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
NAT $3.50 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. 3981990 2026-10-02: 398 OI2026-10-05: 398 OI2026-10-06: 398 OI2026-10-07: 398 OI2026-10-08: 398 OI2026-10-09: 398 OI2026-10-13: 398 OI2026-10-14: 398 OI2026-10-15: 398 OI2026-10-16: 398 OI2026-10-21: 398 OI2026-10-23: 398 OI Oct 02, 2026Oct 23, 2026

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

NAT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3980
Oct 21, 20263980
Oct 16, 20263980
Oct 15, 20263980
Oct 14, 20263980
Oct 13, 20263980
Oct 09, 20263980
Oct 08, 20263980
Oct 07, 20263980
Oct 06, 20263980
Oct 05, 20263980
Oct 02, 2026398No prior observation