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Contract OI history

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Jan 15, 2027 EXPIRATION

CSCO $50.00 Put

CSCO270115P00050000

Latest saved OI1,872Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $50.00 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. 1,8749370 2026-10-09: 1,874 OI2026-10-13: 1,872 OI2026-10-14: 1,872 OI2026-10-15: 1,872 OI2026-10-16: 1,872 OI2026-10-21: 1,872 OI2026-10-23: 1,872 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, 2026Viewing1,8720
Oct 21, 20261,8720
Oct 16, 20261,8720
Oct 15, 20261,8720
Oct 14, 20261,8720
Oct 13, 20261,872-2
Oct 09, 20261,874No prior observation