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Valuing a bank made simple: leverage and risks
Posted by: Chandan Dubey (IP Logged)
Date: March 24, 2012 05:40PM

In the last article, Valuing a bank made simple: balance sheet we saw how a bank makes money and what are the different items on its balance sheet. We pointed out and defined the things we see in a bank's balance sheet.

In a very simplified form, a bank takes deposits from savers and passes these funds to the borrowers. It pays a bit of interest on the savings by the depositors and charges a much higher interest on the funds given to the borrowers. The difference between the interest yields provide the profit for the bank. In some sense, this can be seen as compensation for the risk of providing credit to the borrowers.

Leverage and risk


I would like to say something about the debt in the banking industry. There is a cut-throat competition between the banks to poach customers away from each other. Why would a customer move from bank A to bank B ? If he is a saver, he can be enticed away by offering superior yield on his savings. If he is a borrower, he can be poached by offering lower interest rate on the borrowings. The bank may offer superior customer services and may also pose as a “secure” bank. But these are largely un-noticed by a common saver or a borrower. In this sense, banks offer a very commoditized service.

Explaining leverage is easier done by an example. Let us suppose that you have $100 in your pocket (this is equity). You can invest your $100 at 6% yield ie., you can expect to make 6% every year on your investment. But being greedy you are not satisfied with a 6% yield. Your neighborhood banker comes to the rescue. He offers to give you money at a 5% interest rate. So, you take on a debt of $400 (liabilities) from the bank and you invest $500 (asset). You expect to get 6% every year. After paying the interest to the banker, you will get a profit of ($500*0.06-$400*0.05=) $10. This is a 10% yield on the $100 you invested. This is called leverage. A way to measure the financial leverage is the asset-to-equity ratio. In this case, you financial leverage is $500/$100=5.

This is all very good. But things can go wrong. Nothing in investment, as we know, is very predictable. Let us see what may go wrong.
  • Lower yield on investment: Suppose that the investment you made, had a lousy year. It only returned 4% this year. How much money will you make now ? Well, from our calculations, you have to pay $400*0.05 to the banker, which is $20. On the $500 investment you made 4% yield, which is $500*0.04, $20 again. So, you have nothing left. Your return on the $100 investment was a big fat 0%.
  • Loss on investment: Now suppose that this was a really bad year for the investment. Something which happens in a decade or so. You had a 20% loss in your investment ! Well, the banker does not care. You are contractually obliged to pay him $20 (a 5% yield on the loan of $400 you took). Your $500 investment is worth only ($500-$500*0.2=) $400 now. After paying the banker $400 that you owe him, with $20 in interest you are $20 in debt ! You lost your original investment of $100 and some ($20 in debt). If you had not leveraged your $100, after a 20% loss, you would have $80 in your account.

There are two things to learn from here. If you are in an industry where the return on the asset is small, you must leverage to get an acceptable return on the equity. The second lessons is that the leverage can come to bite you in some circumstances.

We saw in the last article, banks expect to get anywhere between 0.5% to 1% return on the assets they own, after paying their depositors and creditors. This is a very low yielding industry and if the banks only ran on equity and no leverage, they would earn the same return as the return on assets. An investor will be better off putting the money in the treasury than opening/investing in a bank.

To make this worthwhile, the bank has to leverage its balance sheet. We saw that STD was leveraged 15 times the equity. That is, STD has $1 of its own money for every $15 in assets. The assets are invested in loans, bonds, treasuries, securities and so on. A 1/15(=6.66%) loss on the invested assets will wipe out the equity as it will have $14 for every $15 in assets after the loss and it owes $14 to the creditors.

Measuring risk: Basel Accords



Given the risks of leverage and the intrinsic need for banks to be a leveraged business, it was found necessary to come up with a way to measure risk and require the banks to maintain sufficient amount of liquidity.

The Bank of International Settlements (BIS) in Basel, Switzerland is an intergovernmental organization of central banks which serves as a bank for central banks. The BIS has played an important role in forcing the banks to maintain sufficient margins of safety to stop a golbal financial meltdown.

The largely defunct Basel I agreement from 1988 is the one I am going to describe now. This will give you an idea of how the banks are forced to maintain a moderately leveraged balance sheet. It will also give you an idea of how the banks measure risk and explain the buzzwords that are used now. Basel I was superseded by Basel II in 2004 and global banks have until 2019 to de-risk their balance sheet to confirm with Basel III which was agreed upon in 2011.

Basel I: Defining risk

Basel I lumps all of banks assets into risk categories. The risks vary from 0 for treasuries to 100% for corporate debt. See the table below.

Asset typeRisk
Cash and gold in bank, Treasuries, Government debt0%
Securities issued by govt agencies or municipalities, claims on banks that are from the countries in “Organization for Economic Cooperation and Development” (OECD)20%
Residential mortgages50%
Public sector debt0-50%
Claims non-OECD bank, treasuries of less developed countries, corporate debt, equities, real-estate, property plant and equipment100%


Using these weights the assets of the banks are calculated using the risk weight, called Risk Weighted Assets (RWA). According to the Basel I, the capital of the bank should be at least 8% of the RWA. Let us take an example of an imaginary bank and its assets. We will use 8% as the capital ratio as in Basel I.

Asset typeAmountRisk weightRisk weighted assetCapital requirement
Treasuries$1000000
Municipal bonds$100020%$200$16
Mortgage$100050%$500$40
Equities$1000100%$1000$80


As one can expect, the Basel I was too simplistic and had various drawbacks. The lumping of several different things into one category is not very smart. For example, the greek debt will get a 0 risk weight but it is one of the most riskiest assets at the moment. The risk calculation does not take into account the market at all and is a stable measure (does not change if the market goes up or down).

The Basel I agreement was also obviated by banks as they took insurances on their riskiest assets and “sold” the risk to other investors. This gave a false sense of stability to the balance sheet as we now know. Basel II and then Basel III fix some of these problems and loopholes.

If you look at the financial statement of a bank, they throw terms like Tier 1 capital and Tier 2 capital and we need to understand what they are to see what exactly they say about the stability of the bank.

Tier 1 Capital: Tier 1 capital includes common stock and disclosed reserves (may include retained earnings). It may also include preferred stocks. Banks have been very creative in coming up with instruments to generate Tier 1 capital. Basel II and III have consequently put an upper limit of 15% on the core capital which is generated from creative accounting.

Tier 2 Capital: This is supplementary capital. For example, the subordinated debt which ranks after all other debts if the company falls into bankruptcy, can be counted in Tier 2 capital. Hybrid instruments which have properties of both equity and debt can also be counted here.

A very famous type of hybrid instrument which was used quite a bit during the crisis is CoCo bonds (convertible bonds). This types of bond can be converted in common stock or in cash at an agreed upon price. JPM has issued $21B in CoCo bonds.

In the next article, I will concentrate on the management of a bank and how important it is to concentrate on them while valuing a bank.


Stocks Discussed: JPM, STD, BAC, WFC,
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Re Valuing a bank made simple leverage and risks
Posted by: Cornelius Chan (IP Logged)
Date: March 25, 2012 03:20AM

Glass-Steagall separated the gambling investment house side of banking from the plain vanilla fee-based banking side. If the exotic gambling instruments blew up, the investment firm would blow up but leave the bank intact. This is my understanding of the Glass-Steagall Act, enacted after the Great Depression to prevent financial crises.

On a side note, if banking were so hard to understand as an investment, Warren Buffett wouldn't have shares of Wells Fargo would he?

Thanks for breaking banking down in simple to understand terms Cdub.


Stocks Discussed: JPM, STD, BAC, WFC,
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Re Valuing a bank made simple leverage and risks
Posted by: cdubey (IP Logged)
Date: March 25, 2012 06:26AM

Banking is one of the strong suits for Buffett.

You can't say that if it is easy for Buffett then it must be easy. It might be easy for him but very difficult for us.

Buffett makes investing "seem" easy. It does not mean that it actually is.

In any case, I do aim to understand it better. We will see how far this understanding gets us.

I have not read about the Glass-Steagall act. Thank you for mentioning it. I will have a look.


Stocks Discussed: JPM, STD, BAC, WFC,
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Re Valuing a bank made simple leverage and risks
Posted by: ramands123 (IP Logged)
Date: March 25, 2012 07:14PM

I also think Banking is very hard to understand and at the same time very risky because of leverage involved. This risk exponentially rises if it's a big global bank because its virtually impossible to completely understand how well the risk is managed.
Wachovia's CEO came on CNBC a week before it went down saying that things are under control. Vikram Pandit bought significant stake in Citi only to see extreme dilution of stock. There are endless examples of stock dilution after CEO's/CFO clamming that they don't need capital. It clearly demonstrates that for most CEO's/CFO's themselves don't understand the effect of various instruments on thier balance sheets and have not managed risk prudently.

The best way to invest in Banking is to piggy back on best of the breed investors like Warren Buffet, Bruce Berk, Seth Klarman , Lucedia's.

Banking is dangerous cyclical industry and when the cycle ends only top 25 % survive and flourish.
So either know the game inside out or just follow great investors


Stocks Discussed: JPM, STD, BAC, WFC,
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Re Valuing a bank made simple leverage and risks
Posted by: ramands123 (IP Logged)
Date: March 25, 2012 07:18PM

BTW good write-up... keep posting .. thanks


Stocks Discussed: JPM, STD, BAC, WFC,
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Re Valuing a bank made simple leverage and risks
Posted by: utri (IP Logged)
Date: March 26, 2012 04:29AM

A very good write-up. Than you !


Stocks Discussed: JPM, STD, BAC, WFC,
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Re Valuing a bank made simple leverage and risks
Posted by: brazzer (IP Logged)
Date: April 1, 2012 04:12PM

Very good write up!


Stocks Discussed: JPM, STD, BAC, WFC,
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Re Valuing a bank made simple leverage and risks
Posted by: htyen1 (IP Logged)
Date: February 2, 2013 10:05AM

great series of articles on banks, i am learning a lot here!

i am currently in the process of trying to learn how to value a bank (its a very different animal than most companies) however there are lots of metrics to look at, i find this pretty useful in helping me compare the different banks i.e. i setup the list containing bac, jpm, c, usb, wfc, pnc just to compare some of the big boys, [www.bankprobe.com]


Stocks Discussed: JPM, STD, BAC, WFC,
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