📚 PASS Investment Adviser (Level 2) Difficulty: Beginner ℹ️ Info   ~5 min read
📌 Chapter 11.1 — Sources of Income

Imagine you are a fixed-income research analyst tasked with constructing a liquidity-focused portfolio for a conservative client. You review a client’s existing holdings and notice a mix of long-dated Government of India (GoI) bonds and cash equivalents. Your objective is to ensure the portfolio’s duration matches the client’s liability schedule while optimizing for tax efficiency. Understanding the distinctions between Treasury Bills, dated securities, and state development loans is no longer just a theoretical exercise; it is the foundation for your asset allocation strategy.

In the Indian context, the government issues debt through two primary vehicles: Treasury Bills (T-Bills) and dated securities. T-Bills are short-term instruments issued by the Reserve Bank of India on behalf of the government, with maturities typically of 91, 182, and 364 days. Because they do not pay periodic interest, they are issued at a discount and redeemed at face value, with the difference serving as the investor’s return.

Dated securities, conversely, have longer tenures and pay a fixed or floating coupon, making them the benchmark for long-term interest rate modeling in the country.

When evaluating these for a portfolio, an analyst must consider the yield curve’s shape. If you anticipate a rising interest rate environment, holding long-duration dated securities subjects the portfolio to significant price risk, or ‘interest rate risk.’ In such a scenario, shifting toward shorter-duration T-Bills allows the portfolio to capture higher yields as they are rolled over at maturity. This tactical rotation is a standard practice for institutional desks managing interest rate volatility.

Beyond central government debt, analysts also evaluate State Development Loans (SDLs). These are dated securities issued by individual state governments to meet their budgetary requirements. While they are also considered sovereign-backed, they typically trade at a yield spread over central government securities, reflecting a slightly different risk profile and lower liquidity. For a professional, recognizing that SDLs are not strictly ‘risk-free’ in the same liquidity sense as GoI securities is critical when constructing models that demand a true risk-free rate proxy.


Nuance

⚠️ Nuance
A common trap is the assumption that all government-issued debt is perfectly liquid. While dated Central Government Securities are highly liquid, State Development Loans often suffer from wider bid-ask spreads and lower trading volumes. Candidates frequently mistake the sovereign guarantee for instant marketability, which can lead to flawed portfolio liquidity stress tests and erroneous valuation assumptions.

Check Your Understanding

Practice Question 1

An analyst is comparing two assets for a liquidity-management mandate: 91-day T-Bills and 10-year State Development Loans (SDLs). Which of the following statements is most accurate regarding their tax and risk profile in India?

Practice Question 2

Which of the following best characterizes the valuation of Treasury Bills (T-Bills) in an investment portfolio?


This is a companion read for Section 11.1 — Sources of Income from PASS Investment Adviser (Level 2) by Akhilesh Gururani, available on Amazon Kindle.

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