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Contract OI history

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Oct 30, 2026 EXPIRATION

QS $3.50 Put

QS261030P00003500

Latest saved OI1,000Oct 23, 2026
Last change+64vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
QS $3.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,0005000 2026-10-09: 37 OI2026-10-13: 164 OI2026-10-14: 164 OI2026-10-15: 897 OI2026-10-16: 896 OI2026-10-21: 936 OI2026-10-23: 1,000 OI Oct 09, 2026Oct 23, 2026

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

QS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,000+64
Oct 21, 2026936+40
Oct 16, 2026896-1
Oct 15, 2026897+733
Oct 14, 20261640
Oct 13, 2026164+127
Oct 09, 202637No prior observation