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Contract OI history

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Oct 23, 2026 EXPIRATION

CLS $327.50 Put

CLS261023P00327500

Latest saved OI0Oct 23, 2026
Last change-81vs previous saved observation
Saved market days6Oct 13, 2026 onwards
Daily open interest Hover a point for its date and OI
CLS $327.50 put open interest history 6 saved observations from 2026-10-13 to 2026-10-23. Exact values and changes are listed in the table below. 81400 2026-10-13: 0 OI2026-10-14: 0 OI2026-10-15: 73 OI2026-10-16: 73 OI2026-10-21: 81 OI2026-10-23: 0 OI Oct 13, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CLS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing0-81
Oct 21, 202681+8
Oct 16, 2026730
Oct 15, 202673+73
Oct 14, 202600
Oct 13, 20260No prior observation