Key Points Cryptocurrencies experienced a major flash crash on Oct. 10. Unexpected newly proposed tariffs on China precipitated the crash. But excessive financial leverage is the most important part of the story. 10 stocks we like better than Bitcoin › Markets occasionally dump a bucket of icy water on everyone at once, and on Oct. 10, it was the cryptocurrency sector's turn. In the late afternoon, President Donald Trump threatened to hike tariffs on China, and then a total panic exploded in cryp ...