OITracker Cboe delayed data

Contract OI history

Back to TR

Dec 18, 2026 EXPIRATION

TR $42.50 Call

TR261218C00042500

Latest saved OI32Oct 23, 2026
Last change-1vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
TR $42.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 33160 2026-10-02: 27 OI2026-10-05: 27 OI2026-10-06: 26 OI2026-10-07: 26 OI2026-10-09: 26 OI2026-10-13: 26 OI2026-10-14: 32 OI2026-10-16: 32 OI2026-10-21: 33 OI2026-10-23: 32 OI Oct 02, 2026Oct 23, 2026

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

TR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing32-1
Oct 21, 202633+1
Oct 16, 2026320
Oct 14, 202632+6
Oct 13, 2026260
Oct 09, 2026260
Oct 07, 2026260
Oct 06, 202626-1
Oct 05, 2026270
Oct 02, 202627No prior observation