The price of bitcoin swung wildly today, rising to more than USD 19,000 only to fall sharply within minutes, as the frenzy surrounding the virtual currency escalated just days before it starts trading on a major US exchange.

The frenzy even has parts of Wall Street concerned. A group of banks came out and complained that federal regulators approved bitcoin futures, which begin trading on Sunday, too quickly and without properly considering the inherent risks in the virtual currency. What Is The Cost Of Buying Bitcoin?

At 1:05 p.m. EST, Bitcoin was valued at USD 16,825, according to Coinbase, after briefly surging above USD 19,000 this morning. At the start of the year, one bitcoin was worth less than USD 1,000. Coinbase, the largest bitcoin exchange, at one point tweeted that record-high traffic had caused interruptions to its service. The swings in price occurred just as the trading community prepares for bitcoin to start trading on two established U.S. exchanges. Some Useful Points To Note About Bitcoins

Futures for bitcoin will start trading on the Chicago Board Options Exchange on Sunday evening and on the Chicago Mercantile Exchange a week later. The Futures Industry Association, which represents Wall Street's biggest banks and clearing houses, sent a letter to the Commodities Futures Trading Commission, saying that as the guarantors of customers trades, they should have been consulted before trading in bitcoin futures was approved. They expressed concern that the extreme volatility tied into bitcoin could leave banks exposed when the futures move too violently. Bitcoin is the world's most popular virtual currency. Such currencies are not tied to a bank or government and allow users to spend money anonymously. They are basically lines of computer code that are digitally signed each time they are traded.

A debate is raging on the merits of such currencies. Some say they serve merely to facilitate money laundering and illicit, anonymous payments. Others say they can be helpful methods of payment, such as in crisis situations where national currencies have collapsed. Miners of bitcoins and other virtual currencies help keep the systems honest by having their computers keep a global running tally of transactions. That prevents cheaters from spending the same digital coin twice. Online security is a vital concern for such dealings.

In Japan, following the failure of a bitcoin exchange called Mt. Gox, new laws were enacted to regulate bitcoin and other virtual currencies. Mt. Gox shut down in February 2014, saying it lost about 850,000 bitcoins, possibly to hackers.

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