The Fed's core PCE has been revised up to 3.3% for this year, a significant upward revision. With the Fed raising rates, European rates, German rates, gilt yields, and JGB yields are also rising in correlation. All four major central banks are raising rates.
The discount rate stems from the 10-year Treasury yield. If it keeps going higher, the discount rate applied to stocks is much higher, producing lower valuations. The Nasdaq and S&P are more than fully valued, so the stage is set for a correction, though timing is uncertain.