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Contract OI history

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Dec 18, 2026 EXPIRATION

CSCO $67.50 Put

CSCO261218P00067500

Latest saved OI2,981Oct 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 $67.50 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. 2,9811,4900 2026-10-09: 2,981 OI2026-10-13: 2,981 OI2026-10-14: 2,981 OI2026-10-15: 2,981 OI2026-10-16: 2,981 OI2026-10-21: 2,981 OI2026-10-23: 2,981 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, 2026Viewing2,9810
Oct 21, 20262,9810
Oct 16, 20262,9810
Oct 15, 20262,9810
Oct 14, 20262,9810
Oct 13, 20262,9810
Oct 09, 20262,981No prior observation