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The Role of Arbitrage Funds: Low-Risk, Tax-Smart Parking for Your Idle Money

Writer: Rattan Deep
Rattan Deep
Jun 17, 2025
3 min read

Want better-than-FD returns without equity volatility? Arbitrage funds might be your answer.

In the world of mutual funds, risk and return often go hand-in-hand.

But arbitrage funds offer a unique proposition—they aim to give you returns similar to short-term debt, but are taxed like equity.

This makes them especially attractive for short-term investors, those parking surplus funds for a few months, or even conservative investors seeking efficient alternatives to liquid or ultra-short-term funds.

Let’s understand what arbitrage funds are, how they work, and when you should consider using them.


1. What Are Arbitrage Funds?

Arbitrage funds are hybrid mutual funds that:

  • Simultaneously buy stocks in the cash market and sell in the futures market of the same stock

  • Earn the price difference (spread) between the two markets

  • Typically maintain 65%+ in hedged equity positions to qualify for equity taxation

  • The rest is invested in debt or money market instruments for additional income

Since each equity position is offset by a corresponding futures position, the net equity market risk is near zero.

2. How Do Arbitrage Funds Generate Returns?

The price of a stock in the futures market is often slightly higher than in the spot (cash) market. This difference is called the arbitrage spread.

Fund managers exploit this spread:

  • Buy the stock in the cash market

  • Simultaneously sell it in the futures market

  • Pocket the spread at settlement

Returns depend on: ✅ The size of the arbitrage spread

✅ Interest rate trends

✅ Market liquidity and volatility

Historically, arbitrage funds have generated returns in the 5–7% range, with minimal volatility.


3. Key Benefits of Arbitrage Funds

✅ Low Volatility

They’re among the least volatile equity funds, often behaving like ultra-short debt funds.

✅ Tax Efficiency

Despite low risk, they are taxed as equity funds:

  • STCG (<1 year): 20%

  • LTCG (>1 year): 12.5% (after ₹1 lakh exemption)

✅ Good for Short-Term Parking

Ideal for 3–12 month horizons when you want better returns than liquid funds or FDs—without taking equity risk.

✅ Can Be Used for SWP

Especially effective for retirees seeking low-risk, tax-friendly monthly income.


4. Arbitrage Funds vs Other Low-Risk Options

Feature

Arbitrage Fund

Liquid Fund

Ultra-Short Fund

Fixed Deposit

Risk

Very Low (hedged)

Very Low

Low

Very Low

Return Range

5–7%

4–6%

5–6.5%

5–7% (taxable)

Taxation

Equity-style

Debt (slab rate)

Debt (slab rate)

Slab rate

Liquidity

T+1 or T+2

T+1

T+1 or T+2

Penalty on early exit

Arbitrage funds can outperform liquid funds post-tax for investors in higher tax brackets.

5. When Should You Use Arbitrage Funds?

✅ You need a parking space for idle funds (bonus, sale proceeds, etc.) for 3–12 months

✅ You want to avoid equity volatility, but enjoy equity tax benefits

✅ You’re a retiree looking for SWP-friendly, low-volatility funds

✅ You’re investing in a volatile market and want safety until better clarity emerges

✅ You’re building a step-up STP strategy (move from arbitrage to equity via Systematic Transfer Plans)


6. Key Considerations Before Investing

⚠️ Returns are not fixed or guaranteed

They depend on arbitrage spreads, which may narrow in calm markets

⚠️ Not suitable for long-term growth

They don’t generate inflation-beating returns like equity or hybrid funds

⚠️ Not a replacement for liquid funds in emergency corpus

Since they’re T+2 (two-day settlement), liquidity is slightly delayed


7. How Long Should You Stay Invested?

⏳ Minimum recommended horizon: 3–6 months

⏳ For tax efficiency: 12+ months (to enjoy 12.5% LTCG with ₹1 lakh exemption)

Arbitrage funds reward patient short-term investing, not overnight trades.

TL;DR — Too Long; Didn’t Read

  • Arbitrage funds earn from the price difference between cash and futures markets—not from equity rallies

  • Offer low-risk, tax-efficient returns (5–7%), best suited for 3–12 month holding periods

  • Ideal for short-term parking, SWPs, and conservative investors seeking better-than-FD options

  • Taxed like equity: 20% (STCG) or 12.5% LTCG after 1 year

  • Not meant for long-term wealth creation, but great for low-risk, tactical allocations


📩 Looking for a smarter place to park your surplus funds with lower tax drag? Let’s choose an arbitrage fund that fits your liquidity needs and time horizon.

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