Consumers’ embrace of low-cost, passive-investing strategies has helped accelerate the growth of the robo-investing sector. Total assets in the digital-advice market will reach about $220 billion by the end of 2017, or nearly triple the level from 2016, according to financial-research firm Cerulli Associates. Traditional brokerages, including Charles Schwab Corp. and Vanguard Group, have launched robo-investing services in recent years to compete with Betterment LLC and other well-financed startups that have helped popularize the model. PayPal had 218 million active customer accounts at the end of the third quarter, the company said. Acorns has opened 2.4 million accounts globally, of which 1.6 million are actively investing at present, the firm said.

https://www.wsj.com/articles/paypal-to-introduce-customers-to-robo-investing-1511132243