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Contract OI history

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Apr 16, 2027 EXPIRATION

COSM $1000.00 Call

COSM270416C00001000

Latest saved OI485Oct 23, 2026
Last change+32vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
COSM $1000.00 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. 4852420 2026-10-08: 419 OI2026-10-13: 438 OI2026-10-14: 453 OI2026-10-16: 453 OI2026-10-20: 453 OI2026-10-23: 485 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, 2026Viewing485+32
Oct 20, 20264530
Oct 16, 20264530
Oct 14, 2026453+15
Oct 13, 2026438+19
Oct 08, 2026419No prior observation