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Contract OI history

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Dec 18, 2026 EXPIRATION

CSCO $155.00 Call

CSCO261218C00155000

Latest saved OI2,379Oct 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 $155.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2,3801,1900 2026-10-09: 2,380 OI2026-10-13: 2,380 OI2026-10-14: 2,380 OI2026-10-15: 2,379 OI2026-10-16: 2,379 OI2026-10-21: 2,379 OI2026-10-23: 2,379 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, 2026Viewing2,3790
Oct 21, 20262,3790
Oct 16, 20262,3790
Oct 15, 20262,379-1
Oct 14, 20262,3800
Oct 13, 20262,3800
Oct 09, 20262,380No prior observation