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Contract OI history

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Jun 16, 2028 EXPIRATION

CSCO $80.00 Put

CSCO280616P00080000

Latest saved OI1,336Oct 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 $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. 1,3406700 2026-10-09: 1,302 OI2026-10-13: 1,340 OI2026-10-14: 1,340 OI2026-10-15: 1,340 OI2026-10-16: 1,340 OI2026-10-21: 1,336 OI2026-10-23: 1,336 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, 2026Viewing1,3360
Oct 21, 20261,336-4
Oct 16, 20261,3400
Oct 15, 20261,3400
Oct 14, 20261,3400
Oct 13, 20261,340+38
Oct 09, 20261,302No prior observation