Investment banks are not the same as the bank where you keep your checking account

An investment bank is a financial firm that helps large organizations, governments, and wealthy individuals move money around in bulk—buying and selling stocks, bonds, and entire companies. They do not take deposits from regular people and do not offer checking accounts or savings accounts. If you have a bank account at Chase or Bank of America for your paycheck, that is a commercial bank. If you work with Goldman Sachs or Morgan Stanley to sell your company or buy another one, that is an investment bank.

The line between the two blurred after the 1999 repeal of the Glass-Steagall Act, which had separated them for 66 years. Today, many large financial institutions operate both sides—a retail banking division that takes your deposits and an investment banking division that handles corporate deals. But the work is different, the clients are different, and the risks are different.

Key Takeaways

  • Investment banks help corporations, governments, and institutions buy and sell securities and complete large financial transactions, not individuals with personal bank accounts.
  • They earn money through fees on deals and trading commissions, not from interest on deposits the way commercial banks do.
  • Investment banks employ traders, analysts, and deal advisors who work on transactions worth millions or billions of dollars.
  • A single large bank holding company may own both a commercial bank (where you deposit money) and an investment bank (where it handles corporate deals).

What investment banks actually do

Investment banks perform four main functions. Underwriting means they help a company or government issue new stocks or bonds to raise money, and they may provide they will buy any shares or bonds that do not sell. Mergers and acquisitions advisory means they advise one company on buying another—finding targets, valuing them, negotiating terms, and handling the paperwork. Trading means they buy and sell stocks, bonds, currencies, and derivatives on behalf of their own firm or their clients. Research

All of this happens at a scale you do not see in retail banking. A single underwriting deal might raise $500 million. A merger might involve two companies worth billions. A trading desk might move tens of millions of dollars in a single day. The clients are not individuals—they are pension funds, insurance companies, other banks, corporations, and governments.

How investment banks make money

Investment banks do not earn interest on deposits because they do not take deposits. Instead, they earn money through fees and commissions. When they underwrite a stock offering, they take a percentage of the money raised—typically 3 to 7 percent. When they advise on a merger, they charge a flat fee or a percentage of the deal value. When they trade, they keep the profit from the difference between the price they buy at and the price they sell at. When they provide research, large clients pay subscription fees to access their analysts' reports.

This revenue model means investment banks have no interest in keeping your money safe in a savings account. They want to move large sums of money quickly and take a cut of the transaction. The bigger the deal, the bigger the fee.

The difference between investment banks and commercial banks

A commercial bank takes deposits from individuals and businesses, pays interest on those deposits, and lends that money out at a higher interest rate. The spread between what they pay depositors and what they charge borrowers is their profit. They also offer checking accounts, savings accounts, credit cards, and mortgages. Their clients are ordinary people and small to medium-sized businesses.

An investment bank does none of that. It does not take your deposits. It does not offer you a checking account. It does not lend you money for a house. Its clients are large institutions and wealthy individuals, and its revenue comes from fees on massive transactions, not from the interest spread on small loans.

Many large financial institutions—JPMorgan Chase, Bank of America, Citigroup, Wells Fargo—operate both a commercial banking division and an investment banking division under the same parent company. When you open a checking account at one of these banks, you are dealing with the commercial side. When the bank's investment division advises a Fortune 500 company on a $10 billion acquisition, that is the investment banking side.

Why the separation mattered, and why it changed

From 1933 to 1999, the Glass-Steagall Act required commercial banks and investment banks to stay separate. The law was passed after the 1929 stock market crash, based on the theory that mixing retail banking (taking deposits from ordinary people) with investment banking (making risky bets with large sums of money) was dangerous. If an investment bank lost money on a bad trade, it could drag down the commercial bank and put depositors' savings at risk.

In 1999, Congress repealed Glass-Steagall, allowing the two businesses to merge. Supporters argued that large, diversified financial institutions could manage risk better than smaller, specialized ones. Critics warned that the separation of these functions had been important for stability. The 2008 financial crisis, which involved the collapse of large institutions that operated both commercial and investment banking divisions, reignited that debate—but the law has not been reinstated.

How to know if you are dealing with an investment bank

If you are an individual with a personal bank account, you are almost certainly not dealing with an investment bank. Investment banks do not want individual customers. They do not offer checking accounts, savings accounts, or personal loans. They do not have branches in your neighborhood.

You might encounter an investment bank's name if you work for a large corporation and your company uses them to advise on a merger, or if you are a very wealthy individual with millions of dollars to invest and you hire them to manage your portfolio. You might also see their names in the news when they announce a major deal or when they report quarterly earnings.

If you are shopping for a place to keep your paycheck or looking for a mortgage, you are looking at commercial banks, credit unions, or online banks—not investment banks.

Frequently Asked Questions

Can I open an account at an investment bank?

Not as a regular person. Investment banks do not offer checking or savings accounts to individuals. If you have an account at JPMorgan Chase or Bank of America, you are using their commercial banking division, not their investment banking division. Investment banks serve corporations, governments, and institutions.

Do investment banks have FDIC insurance?

The commercial banking divisions of large financial institutions do have FDIC insurance on deposits up to $250,000 per account. The investment banking divisions do not, because they do not take deposits. If you have money in a brokerage account at an investment bank's securities division, it is protected by SIPC (Securities Investor Protection Corporation) up to $500,000, but that is different from FDIC insurance.

Why do investment banks pay so much more than other banks?

Investment banks generate much higher revenue per employee than commercial banks because they handle much larger transactions. A single merger deal might generate millions in fees. A trader might move hundreds of millions in a day. That revenue allows them to pay traders, analysts, and deal advisors far more than a commercial bank pays tellers or loan officers.

Is my money safer at a commercial bank or an investment bank?

If you are a regular person with a checking or savings account, your money is at a commercial bank, and it is insured by the FDIC up to $250,000. Investment banks do not take deposits from individuals, so the question does not explore to you. If you have a brokerage account or securities, that is different from a bank account and is protected differently.