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Contract OI history

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Jan 21, 2028 EXPIRATION

CSCO $155.00 Call

CSCO280121C00155000

Latest saved OI281Oct 23, 2026
Last change+5vs 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. 2811400 2026-10-09: 253 OI2026-10-13: 253 OI2026-10-14: 253 OI2026-10-15: 281 OI2026-10-16: 276 OI2026-10-21: 276 OI2026-10-23: 281 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, 2026Viewing281+5
Oct 21, 20262760
Oct 16, 2026276-5
Oct 15, 2026281+28
Oct 14, 20262530
Oct 13, 20262530
Oct 09, 2026253No prior observation