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Contract OI history

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Oct 23, 2026 EXPIRATION

CSCO $100.00 Put

CSCO261023P00100000

Latest saved OI3,205Oct 23, 2026
Last change-363vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $100.00 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. 3,5681,7840 2026-10-09: 121 OI2026-10-13: 120 OI2026-10-14: 120 OI2026-10-15: 120 OI2026-10-16: 604 OI2026-10-21: 3,568 OI2026-10-23: 3,205 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, 2026Viewing3,205-363
Oct 21, 20263,568+2,964
Oct 16, 2026604+484
Oct 15, 20261200
Oct 14, 20261200
Oct 13, 2026120-1
Oct 09, 2026121No prior observation