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Contract OI history

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Apr 16, 2027 EXPIRATION

CSCO $85.00 Put

CSCO270416P00085000

Latest saved OI311Oct 23, 2026
Last change+19vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $85.00 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. 3111550 2026-10-09: 124 OI2026-10-13: 165 OI2026-10-14: 165 OI2026-10-15: 190 OI2026-10-16: 291 OI2026-10-21: 292 OI2026-10-23: 311 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, 2026Viewing311+19
Oct 21, 2026292+1
Oct 16, 2026291+101
Oct 15, 2026190+25
Oct 14, 20261650
Oct 13, 2026165+41
Oct 09, 2026124No prior observation