Arbitrage Schemes Explained: Simple Guide for Beginners

Arbitrage schemes are mutual funds that earn low‑risk returns by buying in one market and selling in another at a slightly higher price, locking in a small profit each time. This beginner‑friendly guide from Sharevega Educational explains the idea step by step, using simple, Indian‑market examples.

What is Arbitrage?

In plain language, arbitrage means buying something where it is cheaper and selling it at the same time where it is slightly more expensive, pocketing the difference. You are not trying to guess whether prices will go up or down later—you simply take advantage of a temporary mispricing between two places or markets.

In the stock market, this usually means taking advantage of price gaps between the spot (cash) segment and the derivatives segment for the same share or index. Mutual funds that specialise in this technique pool investors’ money and let a professional team run these trades on their behalf, turning many tiny spreads into a steady, low‑volatility return stream over time.

Cash Market vs Futures

To understand how these schemes work, you must first understand the difference between the cash segment and futures contracts.

• In the cash market, you buy shares today, pay the full amount, and the stock comes into your demat account for delivery and long‑term holding.

• In the futures segment, you are not taking delivery immediately; you are entering into a contract to buy or sell the underlying at a pre‑decided price on a future date called the expiry.

Think of it like this: buying in the cash segment is like buying a fridge and bringing it home today, whereas a futures contract is more like signing an agreement today that you will buy or sell that fridge at a fixed price after one month. Because these two segments trade separately, prices can differ slightly at any point in time, and that difference is what a good equity arbitrage desk looks to capture.

Step‑by‑Step Example

Let’s walk through a very simple, concrete example so you can see exactly where the profit comes from.

1. Identify price gap
   Suppose a stock is trading at ₹100 in the spot segment and at ₹103 in the derivatives contract for the same expiry month. The fund manager notices this ₹3 gap and marks it as a potential opportunity.

2. Execute both sides together
   The scheme buys 1,000 shares in the spot segment at ₹100 and simultaneously sells 1,000 units of the futures contract at ₹103. Because both trades are on the same stock and for the same quantity, the position is largely hedged against big market moves.

3. Hold till prices converge
   As expiry approaches, the futures price and the spot price tend to converge, so the difference between them shrinks. At or before expiry, the manager unwinds both legs by selling the spot holding and squaring off the futures position.

4. Lock in the spread
   Ignoring costs, the locked‑in gross profit is about ₹3 per share: the future was sold at ₹103 and the stock was effectively bought at ₹100. Across many such trades and stocks, these gains add up and, after expenses, form the return that unit‑holders see in the scheme’s NAV.

This entire process is a structured arbitrage strategy that repeats continuously as long as the futures and cash market throw up such temporary price differences.

Who Should Invest?

Sharevega Educational recommends seeing this category as a specialised tool for certain use‑cases, not a get‑rich‑quick product.

They can be suitable for:

• Investors with low to moderate risk appetite who want lower volatility than pure equity funds but better tax efficiency than many traditional fixed‑income options.

• People looking to park surplus cash for at least a few months rather than only a few days, especially when stock‑market volatility is high and spreads are usually wider.economictimes.

• Those in higher tax brackets who understand that returns are typically in a mid‑single‑digit to high‑single‑digit annualised range and are okay with that trade‑off.

They are generally not meant for someone chasing very high returns or someone who needs money back within a week, because short‑term NAV movements can be slightly negative on some days even when the overall cycle is profitable.

Taxation

In India, these schemes are usually treated as equity‑oriented mutual funds for tax purposes, provided they maintain at least around 65% exposure to equities and equity‑related instruments, including derivatives. That means capital gains are taxed under the equity capital‑gains framework, not like interest from a fixed deposit which is taxed at your slab rate.

According to recent guidance after the 2024 tax changes:

• If you redeem units within 12 months, the gains are classified as short‑term capital gains on equity and taxed at 20% plus cess, under Section 111A.

• If you hold units for more than 12 months, the gains are considered long‑term; the first ₹1.25 lakh of eligible long‑term gains in a financial year is exempt, and the balance is taxed at 12.5% under Section 112A.

Because of this equity‑style treatment, post‑tax returns can be attractive for investors in higher brackets when compared with some short‑term fixed‑income products, assuming similar pre‑tax yields. However, tax rules can change, so always double‑check current rates with your CA or official sources before investing.

Risks

Although this category is marketed as lower‑risk than typical equity funds, it is not risk‑free. Sharevega Educational suggests that beginners pay attention to at least these risk factors:

• Spread risk: If the difference between spot and futures prices shrinks across the market, the scope for new trades reduces and future returns can fall.economictimes.

• Execution and cost risk: Higher trading costs such as Securities Transaction Tax (STT), brokerage, and impact cost can eat into the small spreads, especially after the 2026 STT hike on derivatives.

• Short‑term NAV fluctuations: Positions are marked‑to‑market daily, so the NAV can show mild negative days even though the overall spread converges positively by expiry.

• Debt‑side risk: A portion of the portfolio may be kept in very short‑term fixed‑income instruments, which carry the usual interest‑rate and credit risks seen in debt funds.

Understanding these points helps set realistic expectations: think “relatively stable, tax‑efficient parking option” rather than “guaranteed or fixed‑return product.”

FAQs

1. In one line, how do these schemes generate returns?
They buy the stock in the segment where it is cheaper and simultaneously sell it via derivatives where it is priced slightly higher, locking in the price gap as potential profit after costs.

2. Are they the same as regular equity funds?
No, regular equity schemes typically take directional exposure—returns depend on whether markets go up over time—while this category focuses on short‑term price gaps and keeps positions largely hedged.

3. Can I lose money in them?
Yes, in the very short term you can see small negative returns due to daily mark‑to‑market movements, shrinking spreads, or higher costs, even though the overall structure is designed to be relatively low‑volatility compared with full equity exposure.

4. What is a reasonable holding period?
Many advisors suggest at least 3–6 months so that multiple arbitrage cycles can play out and short‑term noise smooths out, though there is no fixed rule.

5. How should a beginner start?
Read the scheme documents, look at historical behaviour across different market conditions, check expense ratios, and, if needed, talk to a SEBI‑registered advisor; as you learn with resources like those from Sharevega Educational, start with a small allocation before scaling up.