Robinhood overtook its rivals in trading activity during the month of June.
According to Business Insider, a surge in retail investing drove millions of users to the trading platform.
The brokerage posted 4.31 million daily average revenue trades, as investors capitalized on pandemic-fueled uncertainty.
Robinhood used to attract traders with its zero-commission-fee structure, but rivals have since slashed their own fees.
Still, all other major brokerages failed to post the same leap in trading activity.