Which U.S. president signed the law that created the Securities and Exchange Commission after the 1929 crash?

Franklin D. Roosevelt signed the law that created the Securities and Exchange Commission after the 1929 crash.

The Securities Exchange Act of 1934 established the SEC as an independent federal agency responsible for administering and enforcing major U.S. securities laws. Franklin D. Roosevelt signed the act during the New Deal response to the banking and market failures of the early 1930s.

The SEC was designed to restore confidence in financial markets by requiring important disclosures, regulating exchanges and brokers, and policing manipulation and securities fraud. Joseph P. Kennedy Sr., a former market operator, became its first chairman.

The agency followed the Securities Act of 1933, which focused on new securities offerings. Together, the laws created a more structured federal framework for public-company reporting and investor protection. The SEC did not prevent every later crash, but its rules changed how U.S. markets disclose information and supervise trading.