OITracker Cboe delayed data

Contract OI history

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Oct 30, 2026 EXPIRATION

CLF $21.00 Call

CLF261030C00021000

Latest saved OI412Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CLF $21.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4142070 2026-10-02: 0 OI2026-10-05: 400 OI2026-10-06: 400 OI2026-10-07: 400 OI2026-10-08: 400 OI2026-10-09: 400 OI2026-10-13: 409 OI2026-10-14: 409 OI2026-10-15: 410 OI2026-10-16: 410 OI2026-10-21: 414 OI2026-10-23: 412 OI Oct 02, 2026Oct 23, 2026

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

CLF contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing412-2
Oct 21, 2026414+4
Oct 16, 20264100
Oct 15, 2026410+1
Oct 14, 20264090
Oct 13, 2026409+9
Oct 09, 20264000
Oct 08, 20264000
Oct 07, 20264000
Oct 06, 20264000
Oct 05, 2026400+400
Oct 02, 20260No prior observation