OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

NAT $5.50 Call

NAT270115C00005500

Latest saved OI1,713Oct 23, 2026
Last change-5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
NAT $5.50 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,8259120 2026-10-02: 1,825 OI2026-10-05: 1,724 OI2026-10-06: 1,723 OI2026-10-07: 1,723 OI2026-10-08: 1,722 OI2026-10-09: 1,722 OI2026-10-13: 1,722 OI2026-10-14: 1,722 OI2026-10-15: 1,723 OI2026-10-16: 1,723 OI2026-10-21: 1,718 OI2026-10-23: 1,713 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, 2026Viewing1,713-5
Oct 21, 20261,718-5
Oct 16, 20261,7230
Oct 15, 20261,723+1
Oct 14, 20261,7220
Oct 13, 20261,7220
Oct 09, 20261,7220
Oct 08, 20261,722-1
Oct 07, 20261,7230
Oct 06, 20261,723-1
Oct 05, 20261,724-101
Oct 02, 20261,825No prior observation