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Contract OI history

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Oct 30, 2026 EXPIRATION

CSCO $100.00 Put

CSCO261030P00100000

Latest saved OI1,396Oct 23, 2026
Last change+455vs 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. 1,3966980 2026-10-09: 603 OI2026-10-13: 603 OI2026-10-14: 603 OI2026-10-15: 603 OI2026-10-16: 723 OI2026-10-21: 941 OI2026-10-23: 1,396 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, 2026Viewing1,396+455
Oct 21, 2026941+218
Oct 16, 2026723+120
Oct 15, 20266030
Oct 14, 20266030
Oct 13, 20266030
Oct 09, 2026603No prior observation