PANews reported on February 6 that according to The Block, Michael Sonnenfeldt, founder and chairman of Tiger 21, a global network of super-rich investors, said that the high-net-worth investor network holds about $6 billion in digital currencies. He told CNBC in an interview, "About 1% to 3% of our $200 billion in assets are in digital currencies, which is about $6 billion." "The digital currency field is still very exciting. Some of our members have already invested all their efforts in it. It has become a substitute for gold."