Bitcoin falls almost 20% from recent peak to 1-week low

TOKYO (Reuters): Bitcoin fell more than 10% on Wednesday to a one-week low of $15,800 at cryptocurrency exchange Bitstamp, losing almost one-fifth of its value from a peak hit just three days ago.

The digital currency has been sliding since it reached a record high of $19,666 on Sunday, when the exchange giant CME Group launched bitcoin futures, one week after its rival Cboe Global Markets listed the world’s first bitcoin futures. The bitcoin’s monumental gains this year – its price has soared about 19 times – have spurred caution and alarm among some policymakers.

Singapore’s central bank on Tuesday issued a warning against investment in cryptocurrencies, saying it considers the recent surge in their prices to be driven by speculation and that the risk of a sharp fall in prices is high. South Korea’s Financial Supervisory Service said on Tuesday it does not consider bitcoin and other cryptocurrencies to be currencies of any kind.

Japanese Finance Minister Taro Aso said on Tuesday that bitcoin had not been proven as a credible currency.

However, for Japanese retail investors who are estimated to account for 30 to 50% of bitcoin trade worldwide, a more worrying warning may have come from a Japanese day trader guru known as Cis. The individual trader, who claims to own 21 billion yen ($186 million) in assets, tweeted over the last 24 hours that he had sold cryptocurrencies. Bitcoin has since pared some of the losses and last traded at $16,939, down 4.3% for the day. Its decline since Sunday is hardly a major correction for digital currency. In November, it tumbled almost 30% in four days from $7,888 to $5,555. In September, it fell 40% from $4,979 to $2,972.