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Contract OI history

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Mar 19, 2027 EXPIRATION

CSCO $87.50 Put

CSCO270319P00087500

Latest saved OI1,413Oct 23, 2026
Last change+30vs 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. 1,4137060 2026-10-09: 1,349 OI2026-10-13: 1,352 OI2026-10-14: 1,352 OI2026-10-15: 1,379 OI2026-10-16: 1,383 OI2026-10-21: 1,383 OI2026-10-23: 1,413 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, 2026Viewing1,413+30
Oct 21, 20261,3830
Oct 16, 20261,383+4
Oct 15, 20261,379+27
Oct 14, 20261,3520
Oct 13, 20261,352+3
Oct 09, 20261,349No prior observation