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Contract OI history

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Mar 19, 2027 EXPIRATION

CSCO $120.00 Put

CSCO270319P00120000

Latest saved OI315Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $120.00 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. 3151570 2026-10-09: 310 OI2026-10-13: 309 OI2026-10-14: 309 OI2026-10-15: 308 OI2026-10-16: 314 OI2026-10-21: 314 OI2026-10-23: 315 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, 2026Viewing315+1
Oct 21, 20263140
Oct 16, 2026314+6
Oct 15, 2026308-1
Oct 14, 20263090
Oct 13, 2026309-1
Oct 09, 2026310No prior observation