OITracker Cboe delayed data

Contract OI history

Back to CSCO

Jan 21, 2028 EXPIRATION

CSCO $75.00 Put

CSCO280121P00075000

Latest saved OI1,133Oct 23, 2026
Last change+4vs 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. 1,1335660 2026-10-09: 1,127 OI2026-10-13: 1,127 OI2026-10-14: 1,127 OI2026-10-15: 1,127 OI2026-10-16: 1,128 OI2026-10-21: 1,129 OI2026-10-23: 1,133 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, 2026Viewing1,133+4
Oct 21, 20261,129+1
Oct 16, 20261,128+1
Oct 15, 20261,1270
Oct 14, 20261,1270
Oct 13, 20261,1270
Oct 09, 20261,127No prior observation