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Contract OI history

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Jan 21, 2028 EXPIRATION

CSCO $87.50 Put

CSCO280121P00087500

Latest saved OI460Oct 23, 2026
Last change+3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $87.50 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. 4602300 2026-10-09: 246 OI2026-10-13: 271 OI2026-10-14: 271 OI2026-10-15: 272 OI2026-10-16: 272 OI2026-10-21: 457 OI2026-10-23: 460 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, 2026Viewing460+3
Oct 21, 2026457+185
Oct 16, 20262720
Oct 15, 2026272+1
Oct 14, 20262710
Oct 13, 2026271+25
Oct 09, 2026246No prior observation