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Contract OI history

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Sep 17, 2027 EXPIRATION

CSCO $70.00 Put

CSCO270917P00070000

Latest saved OI290Oct 23, 2026
Last change+13vs 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. 2901450 2026-10-09: 184 OI2026-10-13: 184 OI2026-10-14: 184 OI2026-10-15: 184 OI2026-10-16: 184 OI2026-10-21: 277 OI2026-10-23: 290 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, 2026Viewing290+13
Oct 21, 2026277+93
Oct 16, 20261840
Oct 15, 20261840
Oct 14, 20261840
Oct 13, 20261840
Oct 09, 2026184No prior observation