Read more: FTX Empire Goes Bankrupt After Exchange’s Rapid Downfall

Bankman-Fried’s empire crumbled this week after a liquidity crunch at one of its affiliates. Its US exchange, FTX.US, said on Thursday that customers should close out any positions they want to and that trading may be halted in a few days. In the Bahamas, where FTX.com is based, authorities froze the assets of its local trading subsidiary and related parties.

It’s possible Bankman-Fried owns assets not tracked by the Bloomberg index. Alameda made about $1 billion in profits last year and FTX made hundreds of millions more.

Tech news website The Information reported on Thursday that he had more than $500 million invested in funds managed by Sequoia and other venture capital firms, and was also an investor in media startup Semafor. But if those assets are held through Alameda they might be wiped out by its losses.

For his part, Bankman-Fried is being investigated by the US Securities and Exchange Commission for potential violations of securities rules, a person familiar with the matter said.