Who Regulates the Markets

Why this matters

When you hand money to a brokerage firm or buy a company's shares, you're trusting that the firm will hold your money properly and that the company is telling the truth about itself. Regulation is how that trust is backed up. Knowing who does what also helps you check a firm before you use it, and know where to turn if something goes wrong.

The Securities and Exchange Commission

The SEC is the federal agency that oversees US securities markets. It describes its mission as protecting investors, maintaining fair, orderly, and efficient markets, and facilitating capital formation, and it has been doing so since its founding in 1934, during the Great Depression.¹

Much of the SEC's work is about disclosure: requiring companies that sell securities to the public to share information investors need to make decisions. That's why public companies publish detailed reports, which Part 4 teaches you to read.

One point is widely misunderstood. The SEC reviews filings for whether they meet disclosure rules, but it does not evaluate whether an investment is a good one, and it never "approves" an offering.²

FINRA

FINRA is a not-for-profit, non-government self-regulatory organization that oversees brokerage firms doing business with the public in the US. Under the SEC's oversight, it writes rules, examines firms for compliance, enforces those rules and federal securities laws, and registers the people who work at brokerage firms.³

FINRA also runs BrokerCheck, a free tool for looking up whether a broker or firm is registered, along with their employment history, licenses, regulatory actions, and customer complaints.⁴

Other organizations you'll hear about

• The Federal Reserve is best known for setting monetary policy, including its inflation goal.⁵ For investors, it also matters because its Regulation T sets how much you can initially borrow to buy stocks in a margin account.⁶ Part 6 covers the Fed in Central Banks and Monetary Policy.
• SIPC, the Securities Investor Protection Corporation, isn't a regulator. It steps in if a member brokerage firm fails and customers' cash and securities are missing, up to set limits. It does not protect against a decline in the value of your investments.⁷
• The FDIC insures deposits at member banks, up to a legal limit.⁸ Bank deposits and brokerage accounts are protected by different organizations in different ways.

Someone messages Priya on social media offering an investment that is "fully approved by the SEC" and "guaranteed" to pay 3% a month.

Claim	What Priya now knows
"Approved by the SEC"	The SEC never approves offerings. This claim is itself a red flag.
"Guaranteed" high returns	High potential returns come with high risk, as Risk and Return showed.
Who is selling it?	She can look the person and firm up on BrokerCheck before sending anything.

Priya is fictional, but this pattern of claims is a common one. Part 4 covers scams in detail in Scams: Pump-and-Dumps, Fake Gurus, and Deepfakes.

Key takeaways

• The SEC oversees US securities markets and focuses heavily on disclosure. It never approves investments.
• FINRA oversees brokerage firms and brokers, and BrokerCheck lets you look them up for free.
• SIPC helps if a brokerage firm fails. The FDIC insures bank deposits. Neither covers market losses.
• "Approved by the SEC" is a warning sign, not a reassurance.

Check your understanding

Your investments at a brokerage firm fall 20% during a market decline. Which organization covers that loss?

1. SIPC, because it protects customers of member brokerage firms.
2. The FDIC, up to $250,000 per account holder.
3. None of them. Market losses aren't covered.

Before opening an account with a broker you found online, what's a sensible first check?

1. Ask the broker whether the SEC has approved their products.
2. Look up the broker and firm on FINRA's BrokerCheck.
3. Check how many followers they have on social media.

What's next

News reports often say "the market" rose or fell. The last lesson in this module, Market Indexes: What "The Market" Means, explains what that actually refers to.