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Contract OI history

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Nov 20, 2026 EXPIRATION

DEFT $500.00 Put

DEFT261120P00000500

Latest saved OI821Oct 23, 2026
Last change+524vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
DEFT $500.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 8214100 2026-10-09: 230 OI2026-10-13: 229 OI2026-10-15: 229 OI2026-10-16: 229 OI2026-10-20: 297 OI2026-10-23: 821 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, 2026Viewing821+524
Oct 20, 2026297+68
Oct 16, 20262290
Oct 15, 20262290
Oct 13, 2026229-1
Oct 09, 2026230No prior observation