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Contract OI history

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Mar 19, 2027 EXPIRATION

CSCO $72.50 Put

CSCO270319P00072500

Latest saved OI1,286Oct 23, 2026
Last change+33vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
CSCO $72.50 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. 1,2866430 2026-10-09: 1,236 OI2026-10-13: 1,251 OI2026-10-14: 1,251 OI2026-10-15: 1,251 OI2026-10-16: 1,251 OI2026-10-21: 1,253 OI2026-10-23: 1,286 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, 2026Viewing1,286+33
Oct 21, 20261,253+2
Oct 16, 20261,2510
Oct 15, 20261,2510
Oct 14, 20261,2510
Oct 13, 20261,251+15
Oct 09, 20261,236No prior observation