The U.S. Securities and Exchange Commission published a video transcript of Chair Gary Gensler’s final “Office Hours” episode, setting out in plain terms how the SEC fits into U.S. capital markets and how investor-protection rules and enforcement support market participation. Gensler described U.S. capital markets as roughly USD 120 trillion in size, about five times larger than the U.S. banking system, and highlighted their links to everyday finance, including mortgages, consumer credit and the U.S. Treasury market. He framed the SEC’s mandate, created in the 1930s in response to fraud and Ponzi schemes, as establishing and enforcing “rules of the road,” and noted engagement with the public through rulemaking comments, investor education, and tips, complaints and referrals, alongside work on market structure and market “plumbing” topics such as central clearing and the Treasury markets.