Robinhood, the zero-commission brokerage platform that is popular with millenials, has seen a surge in trading volume as the market entered a volatile period due to the coronavirus pandemic. Robintrack is a platform that uses data from Robinhood's API to track how many of its users own a particular stock over time. The compiled data is put into a charting format that helps show the relationship between the price of a stock and popularity with Robinhood users. Here are the 10 stocks on Robinhood that saw the largest increase in user ownership over the last week. Visit Business Insider's homepage for more stories. Robinhood, the zero-commission brokerage platform that's popular with millenials, has seen a surge in trading volume as the stock market entered a volatile period due to the coronavirus pandemic. Robintrack is a platform that uses data from Robinhood's API to track how many Robinhood users own a particular stock over time.