Not every investor is chasing the next multibagger. Some just want idle cash working harder – without equity anxiety. Two categories serve this goal well, each in a different way: money market mutual funds and arbitrage funds.
Getting the choice wrong doesn’t just cost returns. It can mean unnecessary tax drag or a liquidity mismatch that shows up at the worst time.
What Money Market Mutual Funds Actually Deliver
A money market mutual fund puts capital into short-term debt instruments – treasury bills, commercial papers, certificates of deposit, and repos – all maturing within a year. The promise is simple: stability, liquidity, and returns that beat a savings account without real credit risk.
Top funds here are consistently delivering. Tata Money Market Fund has a 3-year return of 7.72% on ₹33,557 crore AUM. ICICI Pru Money Market Fund sits at 7.59% on ₹35,024 crore. HDFC, Axis, and Kotak are all clustered between 7.55–7.64%.
Expense ratios are low across the board. Bandhan Money Market Fund charges just 0.10%. Franklin India’s version is at 0.13%. That’s meaningful when annual returns sit in the 7–8% band.
For parking short-term surplus, this category is transparent, predictable, and hassle-free.
Where an Arbitrage Fund Works Differently
An arbitrage fund exploits price gaps between the cash and futures markets. It buys a stock at spot price and simultaneously sells its futures contract at a slightly higher price. When prices converge at settlement, the fund captures the spread.
Returns look like debt. The fund is taxed like equity. That’s the whole angle.
Kotak Arbitrage Fund leads the category at ₹72,153 crore AUM with a 3-year CAGR of 7.82%. Tata Arbitrage Fund and Invesco India Arbitrage Fund have each returned 7.80% over three years. These numbers sit at or slightly above money market mutual fund returns – with a structural tax advantage attached.
An arbitrage fund held beyond 12 months qualifies for equity taxation. Long-term gains above ₹1.25 lakh attract 12.5% tax. Money market mutual fund gains, by contrast, are taxed at the investor’s income slab. A 30% bracket investor hands back nearly half the return.
The Side-by-Side Every Conservative Investor Should See
Here is where these two categories actually diverge:
- Return range: Both hover around 7.5–7.9% in 3-year returns – similar on paper.
- Post-tax edge: Arbitrage funds win clearly for 20–30% slab investors; money market gains attract full slab-rate tax.
- Liquidity: Money market mutual funds redeem freely without exit load. Arbitrage funds charge if redeemed within 30 days.
- Return consistency: Money market returns are predictable. Arbitrage returns thin out when market volatility drops and spread opportunities shrink.
- Risk type: Money market mutual funds carry no directional exposure. Although they protect stock positions, arbitrage funds are subject to margin execution risk.
The Tax Maths Conservative Investors Often Miss
A money market mutual fund returning 7.60%, taxed at 30%, leaves roughly 5.32% in hand. The same return from an arbitrage fund held 12+ months, taxed at 12.5%, leaves approximately 6.65%. That gap compounds over time.
Investors in higher tax brackets who ignore this are leaving real money behind – not through bad investing, just an overlooked calculation.
Making the Right Call
Platforms like Angel One let investors compare both categories together – returns, expense ratios, tax treatment, and risk ratings all in one view. Angel One also supports Mutual Funds, F&O, ETFs, and IPOs from a single account, useful for investors managing broader portfolios.
Money market mutual funds suit those needing genuine liquidity and zero complexity. Arbitrage funds suit investors staying for 12+ months who care about post-tax outcomes. The right answer depends on two things – how long the capital sits, and which tax bracket it sits in.
