Robinhood Working on Feature to Let Users Invest Spare Change

Robinhood Markets Inc. is exploring new features that would let customers invest spare change and better protect against volatility in cryptocurrency trading, according to code hidden inside a test version of the company’s iPhone app.

Robinhood is developing an option called “round up investments” that will allow users to invest their spare change in specific stocks, according to the code, which was part of a version of the app distributed to beta testers earlier this month. The code also shows that the company is exploring a rewards program that will give bonuses to those using the round-up feature.

Investing spare ...