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Contract OI history

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Sep 17, 2027 EXPIRATION

COST $1200.00 Call

COST270917C01200000

Latest saved OI200Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
COST $1200.00 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. 2001000 2026-10-09: 43 OI2026-10-13: 46 OI2026-10-14: 46 OI2026-10-15: 195 OI2026-10-16: 195 OI2026-10-21: 198 OI2026-10-23: 200 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, 2026Viewing200+2
Oct 21, 2026198+3
Oct 16, 20261950
Oct 15, 2026195+149
Oct 14, 2026460
Oct 13, 202646+3
Oct 09, 202643No prior observation