OITracker Cboe delayed data

Contract OI history

Back to CSCO

Dec 18, 2026 EXPIRATION

CSCO $100.00 Put

CSCO261218P00100000

Latest saved OI5,151Oct 23, 2026
Last change+378vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $100.00 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. 5,1512,5750 2026-10-09: 4,543 OI2026-10-13: 4,551 OI2026-10-14: 4,551 OI2026-10-15: 4,717 OI2026-10-16: 4,727 OI2026-10-21: 4,773 OI2026-10-23: 5,151 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, 2026Viewing5,151+378
Oct 21, 20264,773+46
Oct 16, 20264,727+10
Oct 15, 20264,717+166
Oct 14, 20264,5510
Oct 13, 20264,551+8
Oct 09, 20264,543No prior observation