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Contract OI history

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Jan 21, 2028 EXPIRATION

CSCO $42.50 Call

CSCO280121C00042500

Latest saved OI583Oct 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 $42.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 5842920 2026-10-09: 584 OI2026-10-13: 584 OI2026-10-14: 584 OI2026-10-15: 584 OI2026-10-16: 584 OI2026-10-21: 583 OI2026-10-23: 583 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, 2026Viewing5830
Oct 21, 2026583-1
Oct 16, 20265840
Oct 15, 20265840
Oct 14, 20265840
Oct 13, 20265840
Oct 09, 2026584No prior observation