The Alphabet-backed stock trading app service has raised an undisclosed amount in a round led by new investor DST Global.

Robinhood, the US-based trading app developer backed by internet and technology conglomerate Alphabet, has received an undisclosed amount from investment firm DST Global at a $1.3bn valuation, TechCrunch has reported.

Founded in 2013, Robinhood operates an app-based brokerage that can be used to track and trade stock free of charge. It also supplies software that can be used by other developers to offer the service in their own apps.

DST invested as part of a round it led, according to…