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Contract OI history

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Jun 17, 2027 EXPIRATION

CSCO $80.00 Put

CSCO270617P00080000

Latest saved OI659Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $80.00 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. 6613300 2026-10-09: 661 OI2026-10-13: 658 OI2026-10-14: 658 OI2026-10-15: 658 OI2026-10-16: 658 OI2026-10-21: 658 OI2026-10-23: 659 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, 2026Viewing659+1
Oct 21, 20266580
Oct 16, 20266580
Oct 15, 20266580
Oct 14, 20266580
Oct 13, 2026658-3
Oct 09, 2026661No prior observation