What Returns Can You Realistically Expect from an Arbitrage Fund in India?
Arbitrage funds in India have delivered 6.5 to 7.2% on average over the past decade, tracking short-term interest rates. The real edge is equity tax treatment — LTCG at 12.5% above 1.25 lakh — which often beats liquid funds after tax for investors in the 20-30% slabs.
Arbitrage funds in India have delivered an average of 6.5 to 7.2% annually over the last decade, with no calendar year showing a negative return since 2014. That stable record makes them the most underrated parking ground in what is hybrid fund conversations, but the returns also have a hard ceiling most investors miss.
Understanding the realistic return range matters because arbitrage funds are often pitched as "equity tax with debt-like risk" — true on tax, partially true on risk, and usually overstated on return.
How arbitrage funds actually earn money
An arbitrage fund buys a stock in the cash market and simultaneously sells the same stock in the futures market. The futures price is usually slightly higher than the cash price, and that gap (called the cost of carry) becomes the fund's gross return when both legs are settled.
The fund earns nothing from the direction of the market. Whether Nifty rises or falls, the spread is locked at trade entry. This is why arbitrage funds are classified as low-risk despite being equity-oriented in tax law.
The return is tied to short-term interest rates
The cost-of-carry spread tracks short-term interest rates. When the repo rate is higher, futures premiums widen and arbitrage returns rise. When rates are low, the spread compresses and arbitrage funds earn close to liquid-fund yields.
| Interest rate environment | Repo rate range | Typical arbitrage return |
|---|---|---|
| Rate-cutting | 4 to 5% | 4.5 to 5.5% |
| Neutral | 5.5 to 6.5% | 6 to 6.8% |
| Rate-hiking | 6.5 to 7.5% | 6.8 to 7.5% |
| Stressed | Above 7.5% | 7.5 to 8.5% |
Why the return ceiling exists
The cost-of-carry spread is bounded by competition. As soon as it widens beyond risk-free rates plus a small premium, arbitrage funds and proprietary trading desks compete it away within minutes.
This is also why "high-yield arbitrage" claims should make you suspicious. If a fund consistently earns 9% in a 6.5% rate environment, it is taking on additional risk somewhere — illiquid stocks, single-stock concentration, or stretched roll-over windows.
Tax treatment is the real edge
Arbitrage funds are taxed as equity funds because they hold above 65% of assets in equity arbitrage trades. That means:
- Long-term capital gains (held above 1 year): 12.5% on gains above 1.25 lakh per year
- Short-term capital gains (held below 1 year): 20%
- No indexation, but no slab-rate hit either
Compare this to liquid funds, where post-2023 rules tax all gains at slab rate regardless of holding period. For investors in the 30% slab, the after-tax difference is often 100 to 150 basis points.
Realistic return expectations across horizons
Use these benchmarks when deciding if an arbitrage fund fits your goal.
- 3-month parking: 5.5 to 6.5%, slightly better than a savings account, similar to a liquid fund pre-tax
- 6 to 12 months: 6 to 7%, with positive net-of-tax advantage over liquid funds for higher slabs
- 1 to 3 years: 6.5 to 7.5%, where tax efficiency really kicks in
- Over 3 years: still 6 to 7%, but inflation can erode real returns
Example: a 10 lakh parking decision
You park 10 lakh rupees for 18 months. Liquid fund gives 7.0% pre-tax; net at 30% slab = 4.9%. Arbitrage fund gives 6.8% pre-tax; net after LTCG = 6.0%. The arbitrage fund delivers 1.1 lakh more after-tax over 18 months, almost entirely because of tax treatment, not gross return.
This example is what financial planners mean when they call arbitrage funds a tax-efficient liquid alternative.
Risks that the brochures understate
Arbitrage funds are low-risk, not no-risk. Three things can go wrong:
- Roll-over slippage: when rolling over month-end positions, the spread can compress against the fund
- Liquidity squeeze: in a panic, futures prices can dislocate from cash, briefly hurting NAV
- Concentration in mid-caps: some funds chase yield by trading mid-cap arbitrage, which adds liquidity risk
Stick to large arbitrage funds with steady AUM, low expense ratios, and an explicit large-cap mandate.
Who should use arbitrage funds, and who should not
Arbitrage funds make sense if you are in the 20% or 30% tax slab and need a 6-to-24-month parking spot. They are wasted on investors in the 5% or 10% slab — a debt fund or fixed deposit usually delivers similar after-tax returns with simpler tax forms.
Avoid them for ultra-short emergency money. The 1-day exit load and slight NAV jitter make plain liquid funds a cleaner emergency parking spot.
How to compare two arbitrage funds before investing
Three numbers tell you which fund is doing its job better and which is just collecting AUM.
- Three-year and five-year rolling return: a steady 6 to 7% beats an erratic 5 to 8% with the same average
- Expense ratio: direct plans should be under 0.40%; regular plans under 0.85% are acceptable
- AUM consistency: funds that grow steadily are easier to operate; sudden inflows can hurt yields
Look for arbitrage funds with at least 1,500 crore AUM, a 5-year track record, and an expense ratio you can defend. Anything smaller or newer can have unstable execution in periods of futures-market stress.
Where arbitrage funds fit in a real portfolio
Most balanced retail portfolios use arbitrage funds for two purposes only: parking the proceeds of a large stock sale before redeploying, and holding the equity-tax bucket of an emergency fund. Anything beyond that risks turning a parking tool into an asset class it was never designed to be.
Frequently asked questions
Can an arbitrage fund give negative returns?
Brief intra-month drawdowns are possible during rollover stress, but no major arbitrage fund has shown a negative calendar-year return since 2014.
How is an arbitrage fund taxed?
As an equity fund. LTCG above 1.25 lakh per year is taxed at 12.5%, and STCG at 20%.
Frequently Asked Questions
- Can an arbitrage fund give negative returns?
- Brief intra-month drawdowns are possible during rollover stress, but no major arbitrage fund has shown a negative calendar-year return since 2014.
- How is an arbitrage fund taxed?
- As an equity fund. LTCG above 1.25 lakh per year is taxed at 12.5%, and STCG at 20%.
- When do arbitrage funds give the best returns?
- When short-term interest rates are high. Returns track the cost-of-carry spread, which widens with the repo rate.
- Are arbitrage funds safer than liquid funds?
- They are comparable in risk for short holding periods, but arbitrage funds offer better post-tax returns for investors in higher tax slabs.