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Contract OI history

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Dec 18, 2026 EXPIRATION

CSCO $65.00 Put

CSCO261218P00065000

Latest saved OI2,167Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $65.00 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. 2,1681,0840 2026-10-09: 2,168 OI2026-10-13: 2,168 OI2026-10-14: 2,168 OI2026-10-15: 2,168 OI2026-10-16: 2,168 OI2026-10-21: 2,168 OI2026-10-23: 2,167 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, 2026Viewing2,167-1
Oct 21, 20262,1680
Oct 16, 20262,1680
Oct 15, 20262,1680
Oct 14, 20262,1680
Oct 13, 20262,1680
Oct 09, 20262,168No prior observation