Not HFT by any definition (unless your definition of HFT is on the order of minutes), but purely algorithmic and data-driven. You can backtest your algorithms with up to 13 years of historical data, live trade your algorithm with paper money, and even link your algorithm to a broker and trade your algorithms with real money.
It's the single most disruptive financial service I know of, and I've had tremendous success with it, even without linking a brokerage account (just checking it daily for trade signals in my super-low-frequency algorithm on paper money).
Not HFT by any definition (unless your definition of HFT is on the order of minutes), but purely algorithmic and data-driven. You can backtest your algorithms with up to 13 years of historical data, live trade your algorithm with paper money, and even link your algorithm to a broker and trade your algorithms with real money.
It's the single most disruptive financial service I know of, and I've had tremendous success with it, even without linking a brokerage account (just checking it daily for trade signals in my super-low-frequency algorithm on paper money).
https://www.quantopian.com/