This makes it a $73 million round so far: Yello says there is likely to be another, final tranche announced before this round is closed off, coming from SBI as well as other prior investors, which include Formation 8. “We are pleased to add a strategic investor of SBI Holdings’ caliber to our roster of high quality investors and simultaneously strengthen our partnership with Japan’s leading online brokerage,” said Lee Sang Hyuk, founder and CEO of Yello Mobile, in a statement.