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Contract OI history

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Nov 20, 2026 EXPIRATION

DEFT $1000.00 Call

DEFT261120C00001000

Latest saved OI621Oct 23, 2026
Last change+2vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
DEFT $1000.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6713350 2026-10-09: 671 OI2026-10-13: 621 OI2026-10-15: 620 OI2026-10-16: 613 OI2026-10-20: 619 OI2026-10-23: 621 OI Oct 09, 2026Oct 23, 2026

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

DEFT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing621+2
Oct 20, 2026619+6
Oct 16, 2026613-7
Oct 15, 2026620-1
Oct 13, 2026621-50
Oct 09, 2026671No prior observation