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Contract OI history

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Jan 15, 2027 EXPIRATION

CSCO $80.00 Put

CSCO270115P00080000

Latest saved OI10,439Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $80.00 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. 10,4395,2190 2026-10-09: 10,426 OI2026-10-13: 10,426 OI2026-10-14: 10,426 OI2026-10-15: 10,426 OI2026-10-16: 10,426 OI2026-10-21: 10,438 OI2026-10-23: 10,439 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, 2026Viewing10,439+1
Oct 21, 202610,438+12
Oct 16, 202610,4260
Oct 15, 202610,4260
Oct 14, 202610,4260
Oct 13, 202610,4260
Oct 09, 202610,426No prior observation