OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

RF $28.00 Call

RF261218C00028000

Latest saved OI288Oct 23, 2026
Last change-5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
RF $28.00 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. 2931460 2026-10-02: 282 OI2026-10-05: 282 OI2026-10-06: 282 OI2026-10-07: 284 OI2026-10-08: 284 OI2026-10-09: 284 OI2026-10-13: 285 OI2026-10-14: 285 OI2026-10-15: 285 OI2026-10-16: 285 OI2026-10-21: 293 OI2026-10-23: 288 OI Oct 02, 2026Oct 23, 2026

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

RF contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing288-5
Oct 21, 2026293+8
Oct 16, 20262850
Oct 15, 20262850
Oct 14, 20262850
Oct 13, 2026285+1
Oct 09, 20262840
Oct 08, 20262840
Oct 07, 2026284+2
Oct 06, 20262820
Oct 05, 20262820
Oct 02, 2026282No prior observation