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Contract OI history

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Apr 16, 2027 EXPIRATION

COSM $500.00 Call

COSM270416C00000500

Latest saved OI2,458Oct 23, 2026
Last change+103vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
COSM $500.00 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. 2,4581,2290 2026-10-08: 2,224 OI2026-10-13: 2,269 OI2026-10-14: 2,334 OI2026-10-16: 2,344 OI2026-10-20: 2,355 OI2026-10-23: 2,458 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, 2026Viewing2,458+103
Oct 20, 20262,355+11
Oct 16, 20262,344+10
Oct 14, 20262,334+65
Oct 13, 20262,269+45
Oct 08, 20262,224No prior observation