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Contract OI history

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Apr 16, 2027 EXPIRATION

CSCO $90.00 Put

CSCO270416P00090000

Latest saved OI1,614Oct 23, 2026
Last change+691vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $90.00 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. 1,6148070 2026-10-09: 440 OI2026-10-13: 441 OI2026-10-14: 441 OI2026-10-15: 528 OI2026-10-16: 845 OI2026-10-21: 923 OI2026-10-23: 1,614 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, 2026Viewing1,614+691
Oct 21, 2026923+78
Oct 16, 2026845+317
Oct 15, 2026528+87
Oct 14, 20264410
Oct 13, 2026441+1
Oct 09, 2026440No prior observation