OITracker Cboe delayed data

Contract OI history

Back to EXTR

Dec 18, 2026 EXPIRATION

EXTR $26.00 Call

EXTR261218C00026000

Latest saved OI135Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
EXTR $26.00 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 135670 2026-10-08: 10 OI2026-10-09: 134 OI2026-10-13: 134 OI2026-10-14: 135 OI2026-10-16: 135 OI2026-10-20: 135 OI2026-10-23: 135 OI Oct 08, 2026Oct 23, 2026

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

EXTR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1350
Oct 20, 20261350
Oct 16, 20261350
Oct 14, 2026135+1
Oct 13, 20261340
Oct 09, 2026134+124
Oct 08, 202610No prior observation