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Contract OI history

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Jan 15, 2027 EXPIRATION

CSCO $65.00 Put

CSCO270115P00065000

Latest saved OI1,827Oct 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 $65.00 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. 1,8379180 2026-10-09: 1,837 OI2026-10-13: 1,823 OI2026-10-14: 1,823 OI2026-10-15: 1,823 OI2026-10-16: 1,824 OI2026-10-21: 1,824 OI2026-10-23: 1,827 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, 2026Viewing1,827+3
Oct 21, 20261,8240
Oct 16, 20261,824+1
Oct 15, 20261,8230
Oct 14, 20261,8230
Oct 13, 20261,823-14
Oct 09, 20261,837No prior observation