Weekend roundup: ‘Worthless’ bitcoin | ‘Tariff Man’ | Simple advice from Warren Buffett By: MarketWatch December 07, 2018 at 11:43 AM EST Plus: Wild swings in stocks, more on financial independence — and a financial reality check. Read More >> Related Stocks: Berkshire Hathaway Berkshire Hathaway Bitcoin (Bitstamp) Bitcoin Composite General Motors