Why You Cannot Value a Bank Like a Normal Company
Banks are valued on book value and return on equity rather than the enterprise value and EBITDA used for other companies, because for a bank, debt is not financing but raw material.
When the Usual Tools Fail
Most companies are valued using enterprise value, which combines the value of equity and debt, and measures like EBITDA that come before interest. This works because for a normal company, debt is financing, a choice about how to fund operations, separate from the business itself.
For a bank, this breaks down completely. A bank business is borrowing and lending money, so its debt, the deposits and other borrowings it takes in, is not financing separate from the business, it is the raw material of the business. Valuing a bank on enterprise value and EBITDA makes no sense, because those concepts assume a separation between operations and financing that does not exist for a bank.
For a normal company, debt is how it funds the business. For a bank, debt is the business. That single difference breaks the usual valuation tools.
Why Debt Is Different for a Bank
The distinction is fundamental. A manufacturer borrows money to build a factory; the debt funds an operation that is separate from the borrowing. A bank takes in deposits and lends them out; the borrowing and lending are the operation. There is no separating a bank financing from its business, because they are the same thing.
| Normal company | Bank | |
|---|---|---|
| Debt is | Financing for operations | The raw material of operations |
| Valued on | Enterprise value, EBITDA | Equity, book value, ROE |
| Interest is | A financing cost below the line | Core to the business itself |
Because interest income and interest expense are the core of a bank business, not financing items to be excluded, measures that come before interest, like EBITDA, are meaningless for a bank. And because a bank is defined by its balance sheet of assets and liabilities, enterprise value, which tries to value the whole capital structure, does not apply in the usual way.
How Banks Are Actually Valued
Banks are valued primarily on their equity, using two related tools. The first is the price to book ratio, comparing the bank market value to the book value of its equity, the accounting value of what shareholders own. Banks are valued relative to their book value because a bank equity, its capital, is central to what it is and what it can do.
The second is return on equity, how much profit the bank earns relative to its equity. These two connect directly: a bank that earns a high return on equity deserves to trade at a higher multiple of its book value, because it generates more profit from the same capital. A bank earning a return on equity above its cost of equity creates value and trades above book value; one earning below its cost of equity destroys value and trades below book.
Why Book Value Is Meaningful for Banks
Book value matters for banks in a way it does not for most companies because a bank assets and liabilities are largely financial, and financial assets are carried at values close to their actual worth, unlike the historical cost of a factory. A bank book value is therefore a reasonably meaningful measure of what the bank is actually worth in a way that a manufacturer book value, dominated by depreciated old assets, is not.
This is why the price to book ratio, largely ignored for most companies, is central for banks. The book value is a real anchor, and the market values the bank relative to it based on how much profit the bank earns on that book value and how much risk it carries.
The Risk Dimension
Bank valuation also weighs risk heavily, because a bank is a leveraged institution whose assets are loans that can go bad. Two banks with the same return on equity can deserve different valuations if one takes far more risk to earn its return, since the riskier bank returns are less reliable and its equity more likely to be impaired by losses.
This is why analysing a bank involves close attention to the quality of its loans, the adequacy of its capital, and the risk of its assets, alongside the return it earns. A high return on equity earned by taking excessive risk is worth less than a lower return earned safely, and bank valuation must account for how the return is generated, not just its level.
The Bottom Line
Banks cannot be valued with the enterprise value and EBITDA used for normal companies, because a bank debt is not financing but the raw material of its business, making those tools meaningless. Banks are valued instead on their equity, using the price to book ratio and return on equity, which connect directly: a bank earning a high, safe return on its equity deserves to trade above its book value. Book value is meaningful for banks because their assets are financial and carried near actual worth, and valuation weighs risk heavily, since a return earned by taking excessive risk is worth less than one earned safely.