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Contract OI history

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Dec 18, 2026 EXPIRATION

FLEX $100.00 Call

FLEX261218C00100000

Latest saved OI1,172Oct 23, 2026
Last change+648vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
FLEX $100.00 call open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 1,1725860 2026-10-15: 0 OI2026-10-16: 20 OI2026-10-21: 524 OI2026-10-23: 1,172 OI Oct 15, 2026Oct 23, 2026

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

FLEX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,172+648
Oct 21, 2026524+504
Oct 16, 202620+20
Oct 15, 20260No prior observation