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Contract OI history

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Jan 21, 2028 EXPIRATION

DUOL $135.00 Put

DUOL280121P00135000

Latest saved OI55Oct 23, 2026
Last change+17vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
DUOL $135.00 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. 55270 2026-10-09: 48 OI2026-10-13: 48 OI2026-10-14: 48 OI2026-10-15: 48 OI2026-10-16: 38 OI2026-10-21: 38 OI2026-10-23: 55 OI Oct 09, 2026Oct 23, 2026

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

DUOL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing55+17
Oct 21, 2026380
Oct 16, 202638-10
Oct 15, 2026480
Oct 14, 2026480
Oct 13, 2026480
Oct 09, 202648No prior observation