Dogecoin's $50-billion market cap makes it bigger than Ford and Kraft

Meanwhile, other cryptocurrencies have been mired in a slump as euphoria from Coinbase Global Inc.'s listing wears off

For a cryptocurrency created as a joke, Dogecoin now has some serious company.
 

After a 400% rally in the past week, the total value of all circulating Dogecoins in the world is about $50 billion, according to data provider CoinMarketCap.com.
 

That makes it bigger than the market cap of Ford Motor Co. and Kraft Heinz Co. -- and nearly equal to Twitter Inc., the platform where Elon Musk and Mark Cuban have promoted the Shiba Inu-themed meme coin.
 

No one thinks these blue-chip stocks are all that comparable to Dogecoin, a fringe asset with no real purpose beyond being a