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Contract OI history

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Dec 18, 2026 EXPIRATION

CSCO $70.00 Put

CSCO261218P00070000

Latest saved OI1,324Oct 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 $70.00 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. 1,3256620 2026-10-09: 1,325 OI2026-10-13: 1,324 OI2026-10-14: 1,324 OI2026-10-15: 1,323 OI2026-10-16: 1,323 OI2026-10-21: 1,323 OI2026-10-23: 1,324 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, 2026Viewing1,324+1
Oct 21, 20261,3230
Oct 16, 20261,3230
Oct 15, 20261,323-1
Oct 14, 20261,3240
Oct 13, 20261,324-1
Oct 09, 20261,325No prior observation