Digital asset platform Bakkt Holdings Inc. has filed a shelf registration with the U.S. Securities and Exchange Commission (SEC) to raise up to $1 billion. The company says the funds could be used to support a new bitcoin and digital asset investment strategy, a big change for the company. Bakkt, which is publicly traded and backed by Intercontinental Exchange (ICE)—the parent company of the New York Stock Exchange—said it may sell a mix of common stock, preferred shares, debt instruments and warrants. The money raised could be used for general corporate purposes or to buy bitcoin for its corporate treasury. …