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Contract OI history

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Nov 20, 2026 EXPIRATION

CSCO $90.00 Put

CSCO261120P00090000

Latest saved OI1,505Oct 23, 2026
Last change+74vs 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. 1,5057520 2026-10-09: 1,313 OI2026-10-13: 1,335 OI2026-10-14: 1,335 OI2026-10-15: 1,347 OI2026-10-16: 1,405 OI2026-10-21: 1,431 OI2026-10-23: 1,505 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, 2026Viewing1,505+74
Oct 21, 20261,431+26
Oct 16, 20261,405+58
Oct 15, 20261,347+12
Oct 14, 20261,3350
Oct 13, 20261,335+22
Oct 09, 20261,313No prior observation