Strengthening the Office of the Investor Advocate Act This bill revises provisions governing the Office of the Investor Advocate at the Securities and Exchange Commission (SEC). Specifically, the bill expands who may serve as the Investor Advocate, provides that the Investor Advocate may only be removed by the chair of the SEC and may not be removed for advocating policies contrary to the chair or any commissioner, allows the office to publish the results of investor research and testing without review from the SEC, and establishes a budget request process for the office separate from the SEC.