TD Ameritrade Institutional plans to combine a fiduciary leadership summit with its Elite Advisor Conference in West Palm Beach, Fla., on June 13. The event will bring together industry thought leaders, RIAs and consumer advocates to discuss ways to improve investor protection and increase clarity about regulations in the post-Dodd-Frank world.

"Proposed regulatory actions around improving advisor oversight and the application of a uniform fiduciary standard are not going away and should be addressed proactively," said Tom Nally, president of TD Ameritrade Institutional.

To provide policymakers with information to help enhance investor protection without increasing the regulatory burden on RIAs, the custodian has supported separate studies by Georgetown University associate professor of finance James G. Angel and the Boston Consulting Group.

Skip Schweiss, TD Ameritrade's managing director of advisor advocacy and industry affairs, notes that consumers are still only somewhat aware about the differences between the brokerage and RIA models.