Definition
HFT (high-frequency trading)
Sub-second, high-volume order strategies — banned at virtually every retail prop firm.
In prop-firm terms, 'HFT' covers burst order flow, tick scalping and anything holding for seconds with abnormal frequency. On simulated feeds these strategies exploit the environment rather than a market edge.
Bans are enforced retroactively: profits from flagged HFT activity are voided even after they hit the account.
Related terms
General industry definitions — individual firms define terms differently in their own ToS; the decoded rulebook for each firm is the source of truth. Educational, not financial advice.