The CoinDesk Bitcoin Price Index (CoinDesk BPI) was launched in September 2013. The Bitcoin Price Index is an average of bitcoin prices across bitcoin exchanges, and began by using price data from
Bitstamp,
BTC-e and CampBX. Although
Mt. Gox data was not used initially, due to withdrawal concerns for US customers, in November 2013, Mt. Gox was added to the BPI due to "a reduction in the risk premium and the option of additional deposit/withdrawal methods". The
Mt. Gox bitcoin exchange was eventually removed from the index in February 2014 after its "persistent failure to meet the index's standards for inclusion". The index was restored to an average of three exchanges in March 2014 with the inclusion of
Bitfinex price data, according to CoinDesk: "Since the decline of Mt. Gox, we have observed that Bitfinex has been able to sustain a dramatic increase in its share of the total volume of U.S. dollar-denominated bitcoins traded". Publications which have referenced the Bitcoin Price Index data or price include the
BBC,
The Wall Street Journal,
Reuters,
The New York Times,
CNBC, and
Bloomberg News. ==State of Bitcoin report==