ARKK - Rare Diagnosis: Only 4 Times In 40 Years June, 23 2022 04:32 PM ARK Innovation 6-month Treasury yields have risen rapidly. Usually, the SPX rises at the same time and the SPX dividend yield drops. That is not happening this time. We look at the four previous times we had this situation. For further details see: Rare Diagnosis: Only 4 Times In 40 Years