Billionaire investor Mike Novogratz blasted GameStop's valuation, warned against buying Dogecoin, and blamed the Fed for fueling speculation in a trio of interviews. Here are the 10 best quotes.

Mike Novogratz called out GameStop and Dogecoin as examples of investor exuberance. The Galaxy Digital CEO argued bitcoin and Ethereum prices are much less frothy. Novogratz also criticized the Federal Reserve and suggested NFTs have peaked in price. See more stories on Insider's business page. Billionaire investor Mike Novogratz questioned...