Crypto custodian company BitGo Inc. has launched a global digital asset over the counter (OTC) business at the same time as it plans to go public. The expansion comes amid growing demand for cryptocurrencies from institutional investors, such as hedge funds. As one of the largest digital asset custodians in the United States, BitGo primarily helps investors store their digital assets. According to people familiar with the matter earlier this month, the company is considering an initial public offering (IPO). In a statement on Tuesday, BitGo said its over-the-counter (OTC) trading arm will offer spot trading, options trading and lending services to institutional investors to facilitate margin trading. Since the beginning of last year, the company has started serving some clients with billions of dollars in trading volume and more than $100 million in lending. In addition, the trading platform is not only available in the United States, but also covers other jurisdictions including Hong Kong and the Middle East.