REUTERS/Brendan McDermid Citi is looking at offering crypto trading services, according to the Financial Times. The bank's global head of foreign exchange said a range of clients have shown interest in bitcoin. Citi will "build something" when it can be supported by regulators and clients, he said. Sign up here for our daily newsletter, 10 Things Before the Opening Bell. Citi could be the next major bank to enter the digital currency market after surging client interest, the Financial Times reported on Friday.With Goldman Sachs and JPMorgan warming up to cryptocurrencies, other large investment banks are having to look at making them more accessible to the public.Itay Tuchman, Citi's global head of foreign exchange, told the FT services including trading, custody, and financing are under consideration right now.