OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

WULF $21.00 Call

WULF270115C00021000

Latest saved OI1,521Oct 23, 2026
Last change-43vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
WULF $21.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,5737860 2026-10-09: 1,057 OI2026-10-14: 1,410 OI2026-10-15: 1,448 OI2026-10-16: 1,573 OI2026-10-21: 1,564 OI2026-10-23: 1,521 OI Oct 09, 2026Oct 23, 2026

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

WULF contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20261,521-43
Oct 21, 2026Viewing1,564-9
Oct 16, 20261,573+125
Oct 15, 20261,448+38
Oct 14, 20261,410+353
Oct 09, 20261,057No prior observation