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Contract OI history

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Nov 20, 2026 EXPIRATION

SOUN $5.50 Put

SOUN261120P00005500

Latest saved OI35Oct 23, 2026
Last change+27vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
SOUN $5.50 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 35170 2026-10-21: 8 OI2026-10-23: 35 OI Oct 21, 2026Oct 23, 2026

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

SOUN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing35+27
Oct 21, 20268No prior observation