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Contract OI history

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Nov 20, 2026 EXPIRATION

CSTM $29.00 Call

CSTM261120C00029000

Latest saved OI450Oct 23, 2026
Last change+28vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CSTM $29.00 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4502250 2026-10-02: 92 OI2026-10-05: 93 OI2026-10-06: 102 OI2026-10-07: 102 OI2026-10-08: 102 OI2026-10-13: 113 OI2026-10-14: 136 OI2026-10-16: 136 OI2026-10-20: 422 OI2026-10-23: 450 OI Oct 02, 2026Oct 23, 2026

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

CSTM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing450+28
Oct 20, 2026422+286
Oct 16, 20261360
Oct 14, 2026136+23
Oct 13, 2026113+11
Oct 08, 20261020
Oct 07, 20261020
Oct 06, 2026102+9
Oct 05, 202693+1
Oct 02, 202692No prior observation