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Bitfinex
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<p>Bitfinex is a <a href="/facts/Cryptocurrency_exchange/PBbzsc11">cryptocurrency exchange</a> owned and operated by iFinex Inc, and is registered in the <a href="/facts/British_Virgin_Islands/Wl66NGLT">British Virgin Islands</a>. Bitfinex was founded in 2012. It was originally a peer-to-peer <a href="/facts/Bitcoin/UJvqfray">bitcoin</a> exchange, and later added support for other cryptocurrencies. Bitfinex was one of the first professional platforms built for cryptocurrency trading. It offers high-volume trading and both spot and derivatives products, including exchange trading, margin trading, margin funding (P2P lending), over-the-counter markets, and derivatives trading. Bitfinex is the world's second-largest exchange by number of bitcoins held in its <a href="/facts/Digital_wallet/8b38Uev1">digital wallet</a>, and is estimated to have about 403,000 bitcoins. </p>