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Contract OI history

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Jan 21, 2028 EXPIRATION

DUOL $220.00 Call

DUOL280121C00220000

Latest saved OI277Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
DUOL $220.00 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. 2771380 2026-10-09: 275 OI2026-10-13: 275 OI2026-10-14: 275 OI2026-10-15: 275 OI2026-10-16: 275 OI2026-10-21: 276 OI2026-10-23: 277 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, 2026Viewing277+1
Oct 21, 2026276+1
Oct 16, 20262750
Oct 15, 20262750
Oct 14, 20262750
Oct 13, 20262750
Oct 09, 2026275No prior observation