#TradingTypes101 traders can earn big profits or pile up significant losses. Indeed, with the evidence showing that most day traders lose money over time, it's an extremely risky career choice. Day traders, both institutional and individual, would argue that they play an essential role in the marketplace by keeping the markets efficient and liquid. Though day trading will always be intriguing to individual investors, anyone considering it needs to acquire the knowledge, the resources, and the cash that it takes to have a chance at succeeding.