How Does the Legal Definition of “Insider Trading” Apply to Front-Running?
Insider trading is trading based on material, non-public information (MNPI) in breach of a duty of trust or confidence. Front-running is a specific form of insider trading.
It involves an intermediary using MNPI about a client's pending order to trade for personal profit, which is a breach of their fiduciary duty to the client. In the crypto context, a CEX employee front-running a client's order is a clear case of insider trading.