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Contract OI history

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Jan 15, 2027 EXPIRATION

CSCO $57.50 Put

CSCO270115P00057500

Latest saved OI2,112Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $57.50 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. 2,1121,0560 2026-10-09: 2,112 OI2026-10-13: 2,112 OI2026-10-14: 2,112 OI2026-10-15: 2,112 OI2026-10-16: 2,112 OI2026-10-21: 2,112 OI2026-10-23: 2,112 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, 2026Viewing2,1120
Oct 21, 20262,1120
Oct 16, 20262,1120
Oct 15, 20262,1120
Oct 14, 20262,1120
Oct 13, 20262,1120
Oct 09, 20262,112No prior observation