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Contract OI history

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Jan 21, 2028 EXPIRATION

DUOL $210.00 Call

DUOL280121C00210000

Latest saved OI1,089Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
DUOL $210.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,0895440 2026-10-09: 588 OI2026-10-13: 1,069 OI2026-10-14: 1,069 OI2026-10-15: 1,089 OI2026-10-16: 1,088 OI2026-10-21: 1,089 OI2026-10-23: 1,089 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, 2026Viewing1,0890
Oct 21, 20261,089+1
Oct 16, 20261,088-1
Oct 15, 20261,089+20
Oct 14, 20261,0690
Oct 13, 20261,069+481
Oct 09, 2026588No prior observation