The Wise logo displayed on a smartphone screen.
Pavlo Gonchar | SOPA Images | LightRocket via Getty Images
Wise has been accused by a rival fintech company of undermining competition in the money transfer market.
Atlantic Money, a smaller foreign exchange service, made this allegation in a letter to the U.K. competition watchdog, the Competition and Markets Authority.
Shares of Wise, which debuted on the London Stock Exchange in 2021, were worth…