The COVID-19 pandemic disrupted consumer and corporate behavior across the board. Some changes were obvious and quick, like cuts to business travel leading to layoffs at companies that served that space. Other changes have been more surprising. One such new trend has been rising interest in savings and investing applications, the type of service fintech startups offer consumers. TechCrunch has covered this trend, noting a number of American fintech and finservices seeing hugely rising user activity and revenue. Robinhood, the best-known American zero-cost trading app, has seen its trading volume…