OITracker Cboe delayed data

Contract OI history

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Feb 19, 2027 EXPIRATION

REF $15.00 Call

REF270219C00015000

Latest saved OI147Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
REF $15.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 147730 2026-10-02: 147 OI2026-10-05: 147 OI2026-10-06: 147 OI2026-10-07: 147 OI2026-10-08: 147 OI2026-10-09: 147 OI2026-10-13: 147 OI2026-10-14: 147 OI2026-10-16: 147 OI2026-10-20: 147 OI2026-10-23: 147 OI Oct 02, 2026Oct 23, 2026

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

REF contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261470
Oct 20, 2026Viewing1470
Oct 16, 20261470
Oct 14, 20261470
Oct 13, 20261470
Oct 09, 20261470
Oct 08, 20261470
Oct 07, 20261470
Oct 06, 20261470
Oct 05, 20261470
Oct 02, 2026147No prior observation