MAY 20 DIGEST: NYSE Launches Bitcoin Index, Overstock Invests in 'Alternative Trading' Company

Overstock buys a 25% stake into PRO Securities, the New York Stock Exchange launches a BTC pricing index, MasterCard deploys new P2P money transfer service in the U.S., NY Bitcoin Group teams up with BitPay for Bitcoin Pizza Day, and more top stories for May 20.

NYSE Launches Bitcoin Index NYXBT

The New York Stock Exchange (NYSE) launched a bitcoin pricing index on Tuesday, marking the first exchange-calculated index for the digital currency, with a real-time price tied to the Coinbase exchange, reported Mashable.

Tom Farley, president at the NYSE, told the media outlet:

"We are now going to use our name, reputation and global index provider stature to provide bitcoin values that the rest of the market can look to."

Earlier this year, the NYSE joined other institutional investors, including