OITracker Cboe delayed data

Contract OI history

Back to WASH

Nov 20, 2026 EXPIRATION

WASH $40.00 Call

WASH261120C00040000

Latest saved OI678Oct 23, 2026
Last change+138vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WASH $40.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6783390 2026-10-09: 34 OI2026-10-13: 34 OI2026-10-14: 34 OI2026-10-16: 34 OI2026-10-21: 540 OI2026-10-23: 678 OI Oct 09, 2026Oct 23, 2026

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

WASH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026678+138
Oct 21, 2026Viewing540+506
Oct 16, 2026340
Oct 14, 2026340
Oct 13, 2026340
Oct 09, 202634No prior observation