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Contract OI history

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Oct 23, 2026 EXPIRATION

QSI $1.50 Put

QSI261023P00001500

Latest saved OI477Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
QSI $1.50 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. 4772380 2026-10-09: 360 OI2026-10-13: 373 OI2026-10-14: 374 OI2026-10-16: 374 OI2026-10-20: 477 OI2026-10-23: 477 OI Oct 09, 2026Oct 23, 2026

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

QSI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing4770
Oct 20, 2026477+103
Oct 16, 20263740
Oct 14, 2026374+1
Oct 13, 2026373+13
Oct 09, 2026360No prior observation