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Contract OI history

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Sep 17, 2027 EXPIRATION

CSCO $80.00 Put

CSCO270917P00080000

Latest saved OI219Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $80.00 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. 2191090 2026-10-09: 196 OI2026-10-13: 214 OI2026-10-14: 214 OI2026-10-15: 214 OI2026-10-16: 214 OI2026-10-21: 219 OI2026-10-23: 219 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, 2026Viewing2190
Oct 21, 2026219+5
Oct 16, 20262140
Oct 15, 20262140
Oct 14, 20262140
Oct 13, 2026214+18
Oct 09, 2026196No prior observation