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Contract OI history

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Jan 15, 2027 EXPIRATION

CSCO $75.00 Put

CSCO270115P00075000

Latest saved OI3,255Oct 23, 2026
Last change+3vs 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. 3,2551,6270 2026-10-09: 3,180 OI2026-10-13: 3,176 OI2026-10-14: 3,176 OI2026-10-15: 3,176 OI2026-10-16: 3,251 OI2026-10-21: 3,252 OI2026-10-23: 3,255 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, 2026Viewing3,255+3
Oct 21, 20263,252+1
Oct 16, 20263,251+75
Oct 15, 20263,1760
Oct 14, 20263,1760
Oct 13, 20263,176-4
Oct 09, 20263,180No prior observation