Robinhood (HOOD) stock tanked about 9% today after the California-based financial technology giant reported a broad-based decline in monthly trading volume. In November, the company saw volumes decline by 37% across equities, 28% in options, and 12% in crypto as bubble concerns and macro uncertainty triggered a sharp selloff in risk assets. More News from Barchart Versus its year-to-date high in October, Robinhood stock is down some 20% at the time of writing. www.barchart.com Is It Worth Buying Robi ...