OITracker Cboe delayed data

Contract OI history

Back to CSCO

Jan 21, 2028 EXPIRATION

CSCO $80.00 Put

CSCO280121P00080000

Latest saved OI1,628Oct 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 $80.00 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. 1,6288140 2026-10-09: 1,627 OI2026-10-13: 1,627 OI2026-10-14: 1,627 OI2026-10-15: 1,627 OI2026-10-16: 1,628 OI2026-10-21: 1,628 OI2026-10-23: 1,628 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, 2026Viewing1,6280
Oct 21, 20261,6280
Oct 16, 20261,628+1
Oct 15, 20261,6270
Oct 14, 20261,6270
Oct 13, 20261,6270
Oct 09, 20261,627No prior observation