New York (CNN Business) Bitcoin is crashing -- upward. Visa V Mastercard MA Walmart WMT The digital currency has a market value north of $500 billion. Its rapid rise has been remarkable -- or insane, depending on your appetite for risk. That makes bitcoin, comparatively, an attractive currency. There's a set limit to the number of bitcoins on the planet, and investors believe that once the supply runs out, the digital coin's value can only increase.

Source: CNN December 27, 2020 16:30 UTC