OITracker Cboe delayed data

Contract OI history

Back to CSCO

Mar 19, 2027 EXPIRATION

CSCO $90.00 Put

CSCO270319P00090000

Latest saved OI3,310Oct 23, 2026
Last change+22vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $90.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3,3101,6550 2026-10-09: 3,249 OI2026-10-13: 3,249 OI2026-10-14: 3,249 OI2026-10-15: 3,282 OI2026-10-16: 3,289 OI2026-10-21: 3,288 OI2026-10-23: 3,310 OI Oct 09, 2026Oct 23, 2026

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

CSCO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,310+22
Oct 21, 20263,288-1
Oct 16, 20263,289+7
Oct 15, 20263,282+33
Oct 14, 20263,2490
Oct 13, 20263,2490
Oct 09, 20263,249No prior observation