OITracker Cboe delayed data

Contract OI history

Back to EXTR

Dec 18, 2026 EXPIRATION

EXTR $15.00 Put

EXTR261218P00015000

Latest saved OI12Oct 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 $15.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 1260 2026-10-08: 12 OI2026-10-09: 12 OI2026-10-13: 12 OI2026-10-14: 12 OI2026-10-16: 12 OI2026-10-20: 12 OI2026-10-23: 12 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, 2026Viewing120
Oct 20, 2026120
Oct 16, 2026120
Oct 14, 2026120
Oct 13, 2026120
Oct 09, 2026120
Oct 08, 202612No prior observation