Frequently asked questions on Credit Rating: the complete guide
This article compiles an exhaustive list of FAQs on the concept of Credit Rating.
This article compiles an exhaustive list of FAQs on the concept of Credit Rating.
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Wikipedia defines credit rating as “A credit rating is an evaluation of the credit risk of a prospective debtor, predicting their ability to pay back the debt, and an implicit forecast of the likelihood of the debtor defaulting”. Therefore credit rating is the probability of being able to pay back a loan, both interest over time, and the principal at the end.
The AAA (or equivalent) rating indicates the safest possible rating. Since ratings are based on probabilities, there is a non-zero chance, however small, of default. We need to keep in mind that DHFL, which had earlier issued bonds at AAA rating, later defaulted.
An AA-rated NCD will have a higher risk of default vs. a AAA-rated one. Whether that risk will materialise or not will depend on the future performance of the issuer and cannot be predicted in advance. The rating agency is supposed to continuously monitor the financial condition of the company for any changes. An investor in high-yield bonds is expected to:
It is therefore important to weigh the risk of default vs. the promise of higher returns.
Sovereign ratings are issued to the bonds, called gilt, issued by the central government. For an investor in the same country, there is zero credit risk since the government controls the money supply and can print enough currency to pay the interest and principal. Since money printing leads to inflation, the money you will get back at that point will have lower purchasing power.
An investor can find out how risky a bond is by looking up its credit rating. Since lower credit risk implies higher risk, then
A credit upgrade increases the price of bonds and lowers the yield to maturity (YTM) since it is now more appealing to people since risk of default is now lower. A downgrade does the opposite. We give an example with a 5 year AA rated bond with YTM of 10% and price of 100.
You can check this in Excel (on office.com / Google sheets) using the formula PRICE = PRICE(TODAY(),TODAY()+365.25 * 5,10%,YIELD,100,1)
The following debt fund categories use credit ratings as per SEBI:
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Non-convertible debentures (NCDs) are issued by companies to raise long-term capital from investors. Usually, the minimum entry size is low, like ₹10,000, and there are multiple interest payout options like regular payout or cumulative interest. NCDs are of two main types: secured with company assets and unsecured without any asset backing. The risk is therefore higher when:
It is therefore important to understand the risk implied by the credit rating of the NCD before investing in it. The interest rate of the NCD, which will be prominently demonstrated in advertisements, draw the investor in. It is up to the investor to understand the difference between AAA or AA or lower rated credit rating and invest as per their risk-taking ability.
NCDs generally do not offer a way for investors to exit mid-way without selling the NCD in a stock-exchange. In case there is a credit rating downgrade in the NCD or adverse news from the company, it will be even more difficult to exit the NCD at expected prices.
Credit scores are numbers that are given to individuals denoting their ability to pay back loans or obligations like rent payments. Credit ratings are for companies or governments.
In general, long-term credit ratings have default probabilities like:
It is important to remember that these are probabilities. The table should be used as a way of comparing bonds of similar rating vs. bonds rated differently.
Credit ratings are of two major types:
Based on the creditworthiness, ratings can be used to classify bonds as:
Investment managers use the above classification for choosing debt instruments. For example, a pension fund may be restricted to investing only in high-grade bonds. A credit-risk debt mutual fund, as per SEBI definition, will specifically invest in lower-rated bonds as a high-risk/high-return bet.
A credit rating agency (CRA) has to
The CRA rates both the issuer and each individual bond offering of the issuer. The rating might be different for the bond, vis-à-vis the issuer since the bond might have terms and conditions that are different from that of the issuer. A good example of this divergence is when the bond is secured against a lower quality of assets compared to the balance sheet of the issuer.
A1+ is the highest credit rating in the money market. Commercial papers, which form an important part of the portfolio of a money market fund, should be A1+ rated. If your fund has papers lower than this rating, maybe due to a downgrade, then you should check if the new risk profile of the fund still matches your own risk-taking ability.
In general, long-term creditworthiness is measured as:
A rating downgrade happens when certain material facts about the financial position of the issuer or the bond deteriorate. The rating agency will then move the rating down to reflect the new position of the issuer. Credit rating downgrades may make a previously high-grade bond become high-yield. This event may bring in more money from investors looking at high-yield investments. Investors who specifically want lower-credit quality exposure may choose to enter the bond. A downgrade usually makes it difficult to exit the bond without selling it at lower prices.
A rating upgrade happens when certain material facts about the financial position of the issuer or the bond improve. Maybe the issuer managed to raise fresh capital to pay down it’s debt or something similar happened. The rating agency will then move the rating up to reflect the new position of the issuer. Credit rating upgrades may make a previously high-yield bond become high-grade. This event may bring in more money from investors looking at high-grade investments. Investors who specifically want lower-credit quality exposure may choose to exit the bond. An upgrade should therefore improve the liquidity of the bond in the secondary market.
When a credit rating agency produces a rating, it also mentions the outlook. The outlook tells investors about the expected direction of movement of the rating in the next six months to two years. The outlook can be:
A credit rating watch means that the rating agency is expecting some changes in the rating in the near future. Watch values can be:
Investors should track the watch to check that the bond goes in the direction they are happy with. A watch, unlike a credit rating outlook, will affect all bonds of an issuer and will also get resolved faster.
A default is a delay or failure to repay the interest or principal. If the issuer is in default, they are immediately issued the lowest possible credit rating.
Credit rating agencies rate countries as well. Since the credit rating audience is a global investor, different countries end up in different positions on the rating scale. For an investor inside the country investing in government bonds in local currency, there is no credit risk. But for the global investor, there is foreign exchange risk in case the financial position of the country deteriorates.
In India, the major credit rating agencies, in alphabetical order, are
There are a few more as well. In the US, there are the so-called “Big Three” agencies:
Credit ratings are issued by credit rating agencies (CRA). These are profit-making companies whose function is to provide a credit rating to a company, state / municipal government or countries that issue bonds or take loans. CRAs are paid by the company they are rating. This last point may lead to a conflict of interest since the issuer might wish to influence the rating they are expected to get through unfair means. The CRA does not rate individual borrowers like you and me.
A credit rating agency is regulated by the country’s capital market regulator. In India, the regulator is the Securities and Exchange Board of India (SEBI). SEBI has the power to cancel the license of the rating agency in case it finds any wrongdoing as it did in the case of Brickworks.
If you lend money to someone, a credit rating tells you about the chance that you may not get your money back. Debt issuers i.e. those who borrow money, are grouped into groups with each group with a similar risk of default.
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This post titled Frequently asked questions on Credit Rating: the complete guide first appeared on 30 Oct 2022 at https://arthgyaan.com