To have a “duty of best execution” means that a broker or entity fulfilling a trade request has to do so at the best possible execution for their client.
The ‘duty of best execution’ is more than just a guideline - it’s an SEC law. Broker-dealers must report quarterly to the SEC on how they route customers' orders, to ensure compliance. "Best execution” refers to both timing and price.
What is the Fiduciary Standard?
What is the Suitability Standard?
How do Advisors Charge and How Much Should I Pay?