OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

NAT $2.50 Put

NAT270115P00002500

Latest saved OI243Oct 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 $2.50 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. 2581290 2026-10-02: 258 OI2026-10-05: 258 OI2026-10-06: 258 OI2026-10-07: 243 OI2026-10-08: 243 OI2026-10-09: 243 OI2026-10-13: 243 OI2026-10-14: 243 OI2026-10-15: 243 OI2026-10-16: 243 OI2026-10-21: 243 OI2026-10-23: 243 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, 2026Viewing2430
Oct 21, 20262430
Oct 16, 20262430
Oct 15, 20262430
Oct 14, 20262430
Oct 13, 20262430
Oct 09, 20262430
Oct 08, 20262430
Oct 07, 2026243-15
Oct 06, 20262580
Oct 05, 20262580
Oct 02, 2026258No prior observation