The adjustable rate mortgage (ARM) is the favorite of most lenders. From the lender’s point of view, it is the mortgage that is fair to all parties—it changes to reflect current market conditions. As interest rates rise and fall, the interest rate of your mortgage follows suit. To understand ARMs, you must understand the language used with them. The interest rate of the loan is tied to an index.
What is an index?
An index is an interest rate that is publicly published, such as the interest paid on a government bill or note, the cost of funds for a Federal Reserve Bank district, the prime rate, and so on. The interest rate on your loan may be higher than the index rate. For example, it could be 2% over the rate of the index used. You may have heard phrases such as 2% over prime, which means the lender is using the prime rate index and charging 2% more for the loan. The amount over the index rate is called the margin. Your protection against skyrocketing interest rates is called a ceiling, or more commonly, a cap. For example, if your original interest rate is 5% and your cap is 5%, your rate can never go higher than 10%. You should also have a cap on an adjustment. This means that your rate cannot be raised by, for example, more than 1% per year (or whatever period is used for adjustments).
Which indexes are most often used?
One of the most important features of an adjustable rate mortgage is the index to which it is tied. If you plan to keep your loan for more than five years, it may be the most important feature, as all indexes do not react equally to rate changes. There are two basic types of indexes. They are classified as leading and lagging. As the names imply, leading indexes react quickly to economic changes and are highly volatile. Lagging indexes adjust more slowly and do not reach the highs and lows of the leading indexes. Some of the indexes used to determine adjustable mortgage rates include the following.
• Constant Maturity Treasury (CMT)
• Treasury Bill (T-Bill)
• 12-Month Treasury Average (MTA)
• Cost of Deposit Index (CODI)
• 11th District Cost of Funds Index (COFI)
• Cost of Savings Index (COSI)
• London Interbank Offered Rate (LIBOR)
• Certificates of Deposit (CD) Indexes
• Prime Rate
To use an extreme historical example, in May 1981, the prime rate soared to 20.50%. The cost of funds index had also risen, but only to 11.43%. By May 1986, the prime rate had fallen to 8.25%, a 12.25% drop. The cost of funds index had also fallen, but only to 8.44%, a 2.99% drop. A mortgage lender’s success is largely dependent on interest rate trends, especially if making portfolio loans. A lender selling loans to secondary lenders will not worry about rate changes five years from now. The lender making a portfolio loan will usually want to use a leading index. If rates rise, the increase is reflected quickly in the loan rate. If rates fall, it is less likely that the borrower will refinance and the lender will lose the loan entirely.
Which index is right for me?
Your decision depends primarily on the length of time that you intend to keep the loan. If you are planning to keep the loan for five years or less, you are probably better off getting the lowest interest rate available, even if it is tied to a leading index. Your protection is the cap on adjustments. The risk of the loan adjusting dramatically and unexpectedly in a five-year period is usually outweighed by the lower interest rate being offered. The longer you keep the loan, the greater the risk.
This is especially true if the trend appears to be toward higher rates. The advice is simple. If you plan to keep your loan for an indefinite period over five years and you believe interest rates will rise, get a fixed interest rate loan. If you only qualify for an adjustable rate loan, get one that uses a lagging index. The lagging index is most often the best for the borrower under any interest rate trend. If rates rise, they rise more slowly. If rates fall, you can refinance. Something to remember when trying to estimate how long you will keep your mortgage: If your plan is to sell your property in a few years and buy a more expensive home, rising rates may prevent this by making the payments on the more expensive home beyond your reach. Also, refinancing may not be an option if rates rise, since you will have to pay the prevailing higher rate at the time you try to refinance. Planning to keep your mortgage for only a few years because that is how long you usually stay in one place before your job requires you to move is a much better reason.
The following is a list of the most often used indexes and a short explanation of each. When you are offered an adjustable rate mortgage, ask your lender which index is being used and how it has reacted to economic changes over the last few years compared to other indexes. You can also do your own research by typing “mortgage indexes” into a search engine. There are several good websites that will list current index rates, as well as supply historical data.
• Constant Maturity Treasury (CMT). These indexes are the weekly or monthly average yields on U.S. Treasury securities, and are based on closing market bids for actively traded Treasury securities. They are quick-reacting leading indexes. As of October 2007, the rate ranged from 4.11% on the oneyear security to 4.24% on the five-year security. Checking the current rate may give you an indication of the direction in which rates are moving and the speed at which rates can change.
• London Interbank Offered Rate (LIBOR). This index is based on the average interest rate of deposits of euros traded among banks in London. The LIBOR is also considered a leading index, adjusting quickly to world economic changes. As of April 2008, the LIBOR index was 2.72%.
• 11th District Cost of Funds Index (COFI). This index is based more on interest paid on savings and checking accounts. As you know, the interest paid by savings institutions on these accounts rises at a slower rate than loan rates. The 11th District encompasses the savings institutions (savings and loan associations and savings banks) headquartered in Arizona, California, and Nevada. This rate is more commonly used in the Western states, but it is not confined to use there. It is a lagging index that moves at a much slower rate than either the CMT or LIBOR, and rarely reaches their extremes.
• Prime Rate. The prime rate has historically been the rate banks charge their best customers for short-term loans. It is now also being used as a common index for equity lines of credit. Some lenders are offering rates below prime for equity lines with low loan-to-value ratios for customers with high credit scores. The prime rate will move on Federal Reserve Board interest rate hikes, and generally reflects the Fed’s view of the strength of the economy and the threat of inflation. In times of high inflation, the prime rate can rise quickly.
There are several other indexes that are not as commonly used. If you are getting an adjustable rate mortgage loan, be sure to question the lender about the index being used and its volatility. What is a margin? A margin is the difference between the index interest rate and the rate charged to the borrower. The lender has no control over the index rate, but complete control of the margin. One lender could set the interest rate at 2% over COFI, while another could charge 4% over COFI. Shopping for a lender that uses the index most suitable to your situation and the lowest margin is crucial to getting the best adjustable loan.
What is a start rate?
Many adjustable rate loans offer a start rate. This is a very low rate that lasts for only a short time (usually three to six months) before your actual interest rate begins. Start rates are not only confusing and misleading, but they also are, in many instances, scams. A lender offering a start rate as low as 2% cannot get the money to lend to you at that rate. This means that the lender is taking a loss for the first few months of your loan. Lenders are not in business to lose money.
A start rate is similar to a retail store offering a specific item at a cost so low that they lose money selling it. This is called a loss leader. The idea is that when you come to the store to buy the item, you will buy other items that are profitable. The difference between the loss leader and the start rate is that you can buy only the loss leader item and leave the store. You cannot get the start rate only. You have to take the profitable part of the loan, as well. There are several advantages of a low start rate for the lender, especially the less-than-honest lender. First, it is a wonderful advertising gimmick. The naïve borrower hears only the words 2% mortgage loan. This is exactly the type of borrower that this lender wants—someone who can be sold a very profitable loan.
Another advantage is that the lender can qualify the borrower at the start rate. This is good for getting the loan, but puts many borrowers in over their heads when the true payments have to be made. To prevent this, lenders often connect the payment increase to the start-rate payment. When the interest rate jumps to the real rate, the payment does not increase to cover it, also putting the borrower in a poorer financial position.
Since the borrower is not paying enough interest to reduce the principal balance, the interest owed but not paid is added to the principal. This creates negative amortization. Now the borrower is no longer reducing the term of the loan. Since the principal balance is increasing, the borrower is now paying compound interest. At some point in time, the loan must be repaid. This can be done by an increase in the monthly payments necessary to amortize the loan, creating an extreme burden on the borrower, or by a balloon payment that would necessitate refinancing. This may not be possible, since much more money is owed than was originally borrowed. Even if it all works out because the borrower is becoming financially stronger and home prices are increasing, there was a major risk and major expense over a more sensible loan.
There can be a good use of a start rate to qualify a buyer if the start rate is closer to the real rate and the payment adjustment enables the borrower to at least pay the interest once the loan adjusts to the permanent rate formula. Then the payment can gradually adjust to an amount that pays on the principal.
How can I best understand adjustable rate mortgages?
The best way to understand an adjustable rate mortgage is to look at a specific example and then, using made-up numbers, examine some variations.Every six months, you must look at the current rate of the index. The interest rate rises or falls by the same amount as the rise or fall of the index rate, up to the cap of 1% per six-month period. This is where the first problem arises. If the interest rate goes up, does your monthly payment also go up? The answer is a definite maybe.
Depending on the terms of your specific loan, you may have an increase in your monthly payment that fully reflects the increased interest, partially reflects the increased interest, or does not change at all. If you owe $300,000, a 1% rise in interest is $3,000 per year. That is $250 per month. This may strain your budget. If your payment increases by less than $250, you are not paying down your loan as quickly as you might have anticipated. If your payment does not increase at all, you could quickly be paying interest only or less (negative amortization). You can voluntarily increase your monthly payments to avoid this, but can you really afford it?
You can easily see that timing is critical for an adjustable loan. If interest rates are at historic highs when you get your loan, your rate will probably adjust downward. An added bonus is that falling interest rates usually cause an increase in property values. If you use an adjustable loan when rates are at historic lows, you will probably see your rate go up. One problem is that rising interest rates usually cause property values to stabilize or fall. In an extreme case, you would no longer be able to afford to make your increased monthly payment, and falling property prices would make you unable to sell.
The logical question is, “Why would anyone want an adjustable loan when interest rates are low?” The major reason is that it is the only way for them to qualify for a loan. The formula used to qualify a buyer for a loan considers the beginning monthly payment, not the possible future monthly payments. It is similar to the interestonly loan situation with the balloon payment. If it is the only way to home ownership, you take the risk. A more sound reason would be that your job requires you to move every few years. You will pay lower interest and fees for the adjustable loan and you will probably sell before the rates change too much.
What is a flexible payment adjustable rate mortgage?
A lender may suggest a flexible payment adjustable rate mortgage, which limits the payment increase in order to ease the borrower’s fears. The flexible payment aspect of the loan looks like a solution to the problem.
The typical loan of this type will call for a payment adjustment of no more than 7.5% per year, based on the start rate payment. However, there are two problems with this loan for the borrower. First, the increased payment will usually not be enough to cover interest only (negative amortization). This is especially true in a market in which the index rate is rising. Remember, the margin is part of the interest rate. A high margin will cause negative amortization even if the index rate is stable or falls slightly. In flexible payment adjustable rate mortgages, there is a clause that states that if the negative amortization reaches a certain level—usually no more than 125% of the original loan amount—the payment will be adjusted to amortize the loan, superseding the payment cap. Since you owe more than you originally borrowed and have less time to pay it off, the payment will be even higher than if you originally agreed to fully amortize the loan over the original loan term.
What is recasting and how will it affect my mortgage?
The second problem is that the loan will be recast periodically, commonly every five years. Recasting means that the payment is adjusted to fully amortize the loan in the remaining time of the term. This recasting clause also supersedes the yearly payment cap and adjusts the payment to whatever is necessary to pay off the loan in the remaining term. What is the answer? It is the same old story of common sense. If the start rate and initial monthly payment are far below prevailing rates and the payment amount necessary to amortize the loan amount in the agreed-upon term, be careful. You know how much you are borrowing. You know the real interest rate that you will have to pay (the index plus the margin). You know how many years you have to pay it off (the term).
What does common sense tell you?
The less you pay in the early years of the loan, the more you will have to pay later. It also tells you that the smaller the payment, the less will go to principal. This means that you will pay much more interest than in the price of the early smaller payments. Studies done on these loans show increases in the monthly payment well over 100%, even if the index rises only slightly. The higher the margin and the lower the start rate, the greater the payment increase. It has been suggestedthat lenders should be required to raise the start rate based on their margins. A lender with a 4% margin would be required to have a higher start rate compared to a lender with a 2% margin.
This would narrow the gap between the initial required payment and the adjusted payment if maximum negative amortization occurs, or when the loan is recast. However, there is currently no law or regulation requiring lenders to do this. Again, the time element is very important. If your income does not allow for a standard payment interest rates are high and are expected to fall, housing prices are on the rise, and you plan to sell the home within five years, this may be a great loan. Unfortunately, most of these ifs are unpredictable.
The smarter way is to work out a somewhat pessimistic scenario of the possibilities. If you believe you can survive the worst case and the only loan that will allow you to buy the house is one with a low start rate and high margin, you are at least making an informed decision.