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Contract OI history

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Jan 21, 2028 EXPIRATION

CNM $57.50 Put

CNM280121P00057500

Latest saved OI260Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CNM $57.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2671330 2026-10-02: 267 OI2026-10-05: 267 OI2026-10-06: 267 OI2026-10-07: 265 OI2026-10-08: 265 OI2026-10-09: 265 OI2026-10-13: 251 OI2026-10-14: 251 OI2026-10-15: 251 OI2026-10-16: 251 OI2026-10-21: 258 OI2026-10-23: 260 OI Oct 02, 2026Oct 23, 2026

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

CNM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing260+2
Oct 21, 2026258+7
Oct 16, 20262510
Oct 15, 20262510
Oct 14, 20262510
Oct 13, 2026251-14
Oct 09, 20262650
Oct 08, 20262650
Oct 07, 2026265-2
Oct 06, 20262670
Oct 05, 20262670
Oct 02, 2026267No prior observation