(Bloomberg) -- Bitcoin has yet to redefine the global payments system. But it could raise questions about how to define a bear market.
Stock strategists -- and financial journalists -- typically use a 20 percent tumble from a high as the trigger for calling a bear market. Bitcoin has met that description this week, according to Bloomberg's composite price. The low for Wednesday was 20 percent below the record, set way back ... on Monday. It has continued to slide.
It marks the first time for bitcoin to drop into bear-market territory since last month. There have now been three bear-market dips for bitcoin just since August.
By contrast, the S&P 500 Index of stocks last saw a bear market in 2009. When Wells Fargo & Co., the American bank with a market capitalization roughly the size of bitcoin, last saw a bear market for its shares the drop took more than a year to materialize -- from July 2015 to October 2016.
The latest bitcoin slide comes amid a whirlwind of news in crypto-land, including a rising profile for rival bitcoin cash and the bankruptcy of a South Korean exchange that suffered a cyber attack. For those who bought at the start of the year, the consolation for being in a bear market is that they're still up more than 1,500 percent.
To contact the reporter on this story: Eric Lam in Hong Kong at elam87@bloomberg.net.
To contact the editors responsible for this story: Christopher Anstey at canstey@bloomberg.net, Ravil Shirodkar, Dave Liedtka
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