Risks Associated with Fixed Income Securities

Fixed‑income securities are not risk‑free; they are exposed to a set of distinct risks that can erode returns or even lead to loss of principal. The NISM syllabus groups these risks into interest‑rate risk, credit (or default) risk, liquidity risk, reinvestment risk, inflation/purchasing‑power risk, and call/pre‑payment risk. Each risk originates from a different market or issuer factor, and the impact is reflected in the security’s price, yield and cash‑flow profile.

For an investment adviser, recognising which risk dominates a particular bond helps in tailoring suitable recommendations for retail clients. SEBI’s Regulation on Mutual Funds and Portfolio Management Services requires clear disclosure of these risks, especially when advising on debt‑oriented products. Therefore, exam questions often test both conceptual knowledge and the ability to quantify the most common risk – interest‑rate risk – using duration.

Below is a quick snapshot of the risk categories, their primary cause, typical price impact and a common mitigation strategy used by advisers.

• Interest‑Rate Risk – Changes in market rates affect bond prices inversely.
• Credit Risk – Possibility that the issuer defaults on interest or principal.
• Liquidity Risk – Difficulty in selling the bond without a material price concession.
• Reinvestment Risk – Uncertainty of reinvesting coupon payments at favorable rates.
• Inflation Risk – Real return erosion due to rising price levels.
• Call/Pre‑payment Risk – Early redemption by issuer when rates fall, limiting upside.

Interest‑rate risk is the most important risk for fixed‑income securities because bond prices move inversely to market yields. When the Reserve Bank of India (RBI) raises policy rates, existing bonds with lower coupons become less attractive, causing their market prices to fall. Conversely, a rate cut lifts bond prices.

The magnitude of the price change depends on the bond’s duration – a measure of the weighted average time to receive cash flows. Longer‑duration bonds are more sensitive; a 1% rise in yields can reduce the price of a 10‑year bond by roughly 9‑10%, while a 2‑year bond may lose only about 2%.

In the NISM exam, you will be asked to calculate price sensitivity using the duration approximation or to identify which bond in a list is most exposed to rate movements. The formula for Macaulay Duration is provided in the next block, and a worked example demonstrates its use.

Credit risk is the chance that the issuer fails to meet interest or principal obligations. In India, credit ratings from agencies such as CRISIL, ICRA and CARE provide a standardized assessment of default probability. Higher‑rated bonds (AAA, AA) have lower yields, while lower‑rated bonds (BBB, B) offer higher yields to compensate investors for additional risk.

SEBI mandates that advisers disclose the credit rating and any recent rating actions when recommending debt instruments. Exam questions may present a bond’s rating and ask you to infer relative yield levels or to choose the appropriate risk‑adjusted return measure.

Remember that even sovereign bonds carry credit risk, though it is generally lower than corporate bonds. A sudden downgrade can cause a sharp price decline, which is a typical scenario tested in case‑based questions.

Liquidity risk arises when a bond cannot be sold quickly without a significant price concession. Government securities in India are highly liquid, but many corporate bonds, especially those of smaller issuers, trade on thin markets. The bid‑ask spread widens, and the transaction cost rises.

Advisers must assess the average daily turnover and the presence of a secondary market before recommending a bond to a client with short‑term cash needs. The NISM exam often asks you to identify the bond most likely to suffer from liquidity risk based on issuer size or market depth.

Mitigation strategies include laddering the portfolio, holding a mix of highly liquid government bonds, and using mutual fund debt schemes that provide daily liquidity.

Reinvestment risk is the uncertainty that interim cash flows (coupon payments) will be reinvested at rates lower than the original bond’s yield. This risk is most pronounced for high‑coupon bonds when market rates fall after issuance.

Advisers can manage this risk by recommending bonds with staggered maturities (laddering) or by using zero‑coupon bonds where cash flows are deferred until maturity, reducing the need for reinvestment.

In NISM questions, you may be given a scenario where rates have dropped and asked which bond’s total return will be most affected by reinvestment risk.

Inflation risk reflects the erosion of a bond’s real return when the inflation rate exceeds the nominal yield. Fixed‑rate bonds are especially vulnerable, whereas inflation‑linked bonds (e.g., RBI‑indexed securities) provide a hedge.

SEBI requires advisers to disclose the real‑return expectation for fixed‑rate debt products, particularly for retirement‑oriented portfolios. Exam items may ask you to compare the real yield of a nominal bond with that of an inflation‑linked bond.

Practical mitigation includes allocating a portion of the portfolio to inflation‑indexed securities or to assets with a natural inflation hedge, such as real estate investment trusts (REITs).

Call risk occurs when an issuer redeems a bond before maturity, typically when market rates decline. The investor receives the principal early and must reinvest at lower rates, similar to reinvestment risk but forced.

Callable bonds offer higher coupons to compensate for this risk. In India, many corporate bonds and some government securities (e.g., Treasury bills with call options) embed call features.

Exam questions may present a callable bond and ask you to identify the likely price behavior when rates fall, or to compute the yield to call versus yield to maturity.

Advisers must construct debt portfolios that balance return objectives with the client’s risk tolerance and liquidity needs. Key tools include duration matching to liabilities, diversification across issuers and sectors, and laddering to spread reinvestment risk over time.

SEBI’s Investment Adviser Regulations (Regulation 12) require a written risk‑profile questionnaire and a clear risk‑disclosure statement for each recommendation. Failure to disclose any of the six risks discussed can lead to regulatory action.

Exam scenarios often ask you to select the most appropriate risk‑mitigation technique for a given client profile – for example, recommending a mix of short‑term Treasury bills and long‑term corporate bonds for a moderate‑risk investor.