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Contract OI history

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Dec 18, 2026 EXPIRATION

CSCO $82.50 Put

CSCO261218P00082500

Latest saved OI2,318Oct 23, 2026
Last change+511vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $82.50 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. 2,3181,1590 2026-10-09: 1,164 OI2026-10-13: 1,540 OI2026-10-14: 1,540 OI2026-10-15: 1,807 OI2026-10-16: 1,807 OI2026-10-21: 1,807 OI2026-10-23: 2,318 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, 2026Viewing2,318+511
Oct 21, 20261,8070
Oct 16, 20261,8070
Oct 15, 20261,807+267
Oct 14, 20261,5400
Oct 13, 20261,540+376
Oct 09, 20261,164No prior observation