HFT and algorithmic trading are nearly synonymous when it comes to retail trading. Most retail traders that dabble in HFT start out with commercially-available algorithmic trading systems that are compatible with popular trading platforms, such as MetaTrader, cTrader, and NinjaTrader. If you decide to build your own HFT system, you’ll need to test your strategy by performing backtests on historical data. It’s important to use that data to get an idea of how your system would have performed before using it on a forward-testing basis. Retail vs. Institutional: Retail trading systems for HFT might carry out tens or thousands of trades per day, whereas institutional HFT systems can execute thousands of trades per minute. These systems require advanced (and extremely expensive) equipment, as well as the ability to physically co-locate near the exchange or trading venue.