In February, Glauber Contessoto invested his life savings in dogecoin, a cryptocurrency that started as a joke. But his gains are for real. He now owns more than $800,000 in dogecoin. Marketplace’s Matt Levin chats with Contessoto about the HODL — or “hold on for dear life” — mentality that keeps him and other investors in the crypto game despite incredible volatility. Also on today’s program: Why exports surged in October, what’s behind the battle for speedy grocery deliveries and the transition away from fossil fuels takes center stage at the World Petroleum Congress.

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