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Contract OI history

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Jun 17, 2027 EXPIRATION

CSCO $55.00 Put

CSCO270617P00055000

Latest saved OI5,753Oct 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 $55.00 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. 5,7532,8760 2026-10-09: 5,752 OI2026-10-13: 5,752 OI2026-10-14: 5,752 OI2026-10-15: 5,752 OI2026-10-16: 5,752 OI2026-10-21: 5,752 OI2026-10-23: 5,753 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, 2026Viewing5,753+1
Oct 21, 20265,7520
Oct 16, 20265,7520
Oct 15, 20265,7520
Oct 14, 20265,7520
Oct 13, 20265,7520
Oct 09, 20265,752No prior observation