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Contract OI history

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Nov 20, 2026 EXPIRATION

QGEN $40.00 Put

QGEN261120P00040000

Latest saved OI1,087Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
QGEN $40.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,0875430 2026-10-02: 179 OI2026-10-05: 179 OI2026-10-06: 179 OI2026-10-07: 179 OI2026-10-08: 179 OI2026-10-09: 179 OI2026-10-13: 179 OI2026-10-15: 279 OI2026-10-16: 279 OI2026-10-21: 1,087 OI2026-10-23: 1,087 OI Oct 02, 2026Oct 23, 2026

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

QGEN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,0870
Oct 21, 20261,087+808
Oct 16, 20262790
Oct 15, 2026279+100
Oct 13, 20261790
Oct 09, 20261790
Oct 08, 20261790
Oct 07, 20261790
Oct 06, 20261790
Oct 05, 20261790
Oct 02, 2026179No prior observation