OITracker Cboe delayed data

Contract OI history

Back to CSCO

Dec 18, 2026 EXPIRATION

CSCO $75.00 Put

CSCO261218P00075000

Latest saved OI4,333Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $75.00 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. 4,3332,1660 2026-10-09: 4,293 OI2026-10-13: 4,293 OI2026-10-14: 4,293 OI2026-10-15: 4,293 OI2026-10-16: 4,293 OI2026-10-21: 4,333 OI2026-10-23: 4,333 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, 2026Viewing4,3330
Oct 21, 20264,333+40
Oct 16, 20264,2930
Oct 15, 20264,2930
Oct 14, 20264,2930
Oct 13, 20264,2930
Oct 09, 20264,293No prior observation