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Contract OI history

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Jun 17, 2027 EXPIRATION

CSCO $90.00 Put

CSCO270617P00090000

Latest saved OI982Oct 23, 2026
Last change+11vs 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. 9854920 2026-10-09: 985 OI2026-10-13: 984 OI2026-10-14: 984 OI2026-10-15: 984 OI2026-10-16: 984 OI2026-10-21: 971 OI2026-10-23: 982 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, 2026Viewing982+11
Oct 21, 2026971-13
Oct 16, 20269840
Oct 15, 20269840
Oct 14, 20269840
Oct 13, 2026984-1
Oct 09, 2026985No prior observation