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Contract OI history

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Sep 17, 2027 EXPIRATION

CSCO $120.00 Put

CSCO270917P00120000

Latest saved OI250Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $120.00 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. 2501250 2026-10-09: 228 OI2026-10-13: 250 OI2026-10-14: 250 OI2026-10-15: 248 OI2026-10-16: 248 OI2026-10-21: 248 OI2026-10-23: 250 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, 2026Viewing250+2
Oct 21, 20262480
Oct 16, 20262480
Oct 15, 2026248-2
Oct 14, 20262500
Oct 13, 2026250+22
Oct 09, 2026228No prior observation