Best execution

Best execution is a broker's obligation to seek the most favourable terms reasonably available for a customer order. It is the duty that front running and order-routing abuses violate.

instruments and markets · updated 2026-09-08

See also

• Front running — Front running is trading ahead of a customer order, or another order one knows is coming, to profit from the price impact that ord…
• Order routing — Order routing is the decision about where to send an order for execution. Because routing decisions can be influenced by rebates a…

Terms that refer here

Churning · Front running · Order routing · Payment for order flow · Suitability

Back to the full glossary — 261 defined terms.