Return to Prudent Banking Act of 2009

[AI summary unavailable — showing source text] Return to Prudent Banking Act of 2009 - Amends the Federal Deposit Insurance Act (FDIA) to prohibit an insured depository institution from being an affiliate of any broker or dealer, investment adviser, investment company, or any other person or entity engaged principally in the issue, flotation, underwriting, public sale, or distribution of stocks, bonds, debentures, notes, or other securities. Prohibits officers, directors and employees of securities firms from simultaneous service on the boards of depository institutions, except in specified circumstances. Requires any such individual serving as an officer, director, employee, or other institution-affiliated party of any insured depository institution to terminate such service as soon as practicable after enactment of this Act. Requires an insured depository institution to wind-down in an orderly manner and terminate any affiliation prohibited by this Act. Amends the Banking Act of 1933 to expand its prohibition against the transaction of banking activities by securities firms. Declares that Congress ratifies the interpretation by the Supreme Court of specified statutory language in the case of Investment Company Institute v. Ca…