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Contract OI history

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Dec 18, 2026 EXPIRATION

COST $900.00 Call

COST261218C00900000

Latest saved OI345Oct 23, 2026
Last change+8vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
COST $900.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3541770 2026-10-09: 354 OI2026-10-13: 350 OI2026-10-14: 350 OI2026-10-15: 334 OI2026-10-16: 336 OI2026-10-21: 337 OI2026-10-23: 345 OI Oct 09, 2026Oct 23, 2026

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

COST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing345+8
Oct 21, 2026337+1
Oct 16, 2026336+2
Oct 15, 2026334-16
Oct 14, 20263500
Oct 13, 2026350-4
Oct 09, 2026354No prior observation