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Contract OI history

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Apr 16, 2027 EXPIRATION

COSM $7.50 Call

COSM270416C00007500

Latest saved OI618Oct 23, 2026
Last change+205vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
COSM $7.50 call open interest history 6 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 6183090 2026-10-08: 243 OI2026-10-13: 403 OI2026-10-14: 403 OI2026-10-16: 408 OI2026-10-20: 413 OI2026-10-23: 618 OI Oct 08, 2026Oct 23, 2026

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

COSM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing618+205
Oct 20, 2026413+5
Oct 16, 2026408+5
Oct 14, 20264030
Oct 13, 2026403+160
Oct 08, 2026243No prior observation