Investor Corner/The asset classes/Debt Concepts
2.2.12 Money Market Instruments
Money market instruments are very short-term debt securities, such as treasury bills, commercial paper and certificates of deposit. They are used to park money with high safety and easy access rather than for growth.
Built for safety and access, not returns
Money market instruments typically mature within a year, often within days or weeks. That short maturity keeps both interest-rate risk and credit risk relatively contained compared to longer-dated bonds, but it also means the yield on offer is generally modest, since safety and speed of access come at the cost of return potential.
Money market instruments are short-term debt securities with maturities of up to one year. They are designed for safety and liquidity rather than return. The yields are modest, typically close to the repo rate, but the principal risk is near zero and the instruments can be converted to cash quickly. They form the foundation of emergency funds, short-term parking for money between investment decisions, and the underlying portfolio of liquid and overnight mutual funds.
The main types
Treasury bills are short-term government borrowings, generally considered the safest option in this category. Commercial paper is short-term, unsecured borrowing by companies with strong credit standing. Certificates of deposit are similar short-term instruments issued by banks. Liquid and overnight mutual funds primarily hold a mix of these to offer investors easy access with minimal price volatility.
The main types in India include Treasury Bills (issued by the RBI on behalf of the government, in 91-day, 182-day and 364-day maturities), Certificates of Deposit (short-term borrowing by banks, typically 3-12 months), Commercial Paper (unsecured promissory notes issued by corporations, typically 15 days to 1 year), and repurchase agreements (repos, where government securities are sold with an agreement to repurchase, typically overnight). Each of these carries slightly different credit and liquidity characteristics, but all share the defining trait of very short maturity and very low principal risk.
Tri-party repos (TREPs), where a central clearing corporation acts as an intermediary, have become the dominant overnight instrument for mutual funds in India. They offer sovereign-backed collateral and settlement guaranteed by the Clearing Corporation of India, making them one of the safest short-term instruments available. Overnight and liquid funds hold a large proportion of their assets in TREPs and T-Bills.
Where they fit in a plan
Money market instruments are the natural home for an emergency fund, money earmarked for a near-term goal, or cash temporarily waiting to be deployed elsewhere. They are not meant to be a long-term growth engine, and holding a large portion of a long-horizon portfolio here typically means accepting a real opportunity cost over time.
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For individual investors, money market exposure comes primarily through liquid funds (which invest in instruments maturing within 91 days) and overnight funds (which invest in instruments maturing the next business day). The returns are modest, typically 50-100 basis points above a savings account, but the incremental return compounds meaningfully on large sums parked for several months. The key advantage over a savings account is slightly higher yield with comparable safety and near-instant redemption (within one business day for most liquid funds, and same-day for overnight funds up to certain limits).