'Caution flag should be up' — Art Cashin says market overestimating Covid vaccine benefits

Art Cashin
David A. Grogan | CNBC

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Wall Street is likely overestimating the immediate benefits of a coronavirus vaccine and potential headwinds from higher taxes should Democratic nominee Joe Biden be elected president, according to longtime trader Art Cashin.

"The caution flag should be up and flying ... at the very least," Cashin said Thursday on "Squawk on the Street."