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Contract OI history

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Apr 16, 2027 EXPIRATION

COSM $5.00 Call

COSM270416C00005000

Latest saved OI334Oct 23, 2026
Last change+304vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
COSM $5.00 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. 3341670 2026-10-08: 21 OI2026-10-13: 25 OI2026-10-14: 25 OI2026-10-16: 25 OI2026-10-20: 30 OI2026-10-23: 334 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, 2026Viewing334+304
Oct 20, 202630+5
Oct 16, 2026250
Oct 14, 2026250
Oct 13, 202625+4
Oct 08, 202621No prior observation