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Contract OI history

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Sep 17, 2027 EXPIRATION

CSCO $100.00 Put

CSCO270917P00100000

Latest saved OI1,199Oct 23, 2026
Last change+76vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $100.00 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. 1,1995990 2026-10-09: 913 OI2026-10-13: 1,070 OI2026-10-14: 1,070 OI2026-10-15: 1,112 OI2026-10-16: 1,109 OI2026-10-21: 1,123 OI2026-10-23: 1,199 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, 2026Viewing1,199+76
Oct 21, 20261,123+14
Oct 16, 20261,109-3
Oct 15, 20261,112+42
Oct 14, 20261,0700
Oct 13, 20261,070+157
Oct 09, 2026913No prior observation