Does a stockbroker owe a different standard of care than other financial advisors?

In general stock brokers do owe duties to their clients under two different types of law. One type is referred to as a fiduciary duty, which applies in certain circumstances. The other is to act prudently under something referred to generally as the Prudent Man Rule. They need to invest your assets as a prudent man would under all of these surrounding circumstances. Both of those types of obligations can be enforced if necessary under the financial industries regularity administration FINRA's Rules.