Arbitrage: Meaning, How It Works, Types, Benefits and Risks

In summary

Arbitrage is a strategy that seeks to benefit from temporary price differences for the same or related assets in different markets or instruments. The opportunity exists only while the price gap remains.

• Arbitrage involves buying at a lower price and selling at a higher price.
• Price differences can arise because of demand, liquidity, information, or market conditions.
• Opportunities can disappear quickly as market participants act on them.
• Transaction costs, taxes, execution delays, and price changes can reduce potential gains.
• Arbitrage mutual funds use opportunities between the cash and derivatives markets.
• Arbitrage is not risk-free, and returns from arbitrage funds are not guaranteed.

The Bajaj Broking website provides access to mutual fund investments, while arbitrage funds remain subject to market risk and scheme-specific conditions.

Arbitrage is a trading strategy that seeks to benefit from a price difference for the same or related asset in different markets or instruments.

The basic idea is to buy where the asset is available at a lower price and sell where it is available at a higher price. The difference between the two prices is the potential gain before transaction costs, taxes, and other charges.

For example, suppose a share is available for Rs. 500 in one market and Rs. 505 in another. A trader could potentially buy at Rs. 500 and sell at Rs. 505, creating a Rs. 5 price difference before applicable costs.

The opportunity may disappear quickly because other market participants can act on the same price difference.

Arbitrage generally involves identifying a price mismatch and taking offsetting positions to benefit from it.

Consider a stock trading at Rs. 500 in the cash market while its corresponding futures contract trades at Rs. 510. A trader may buy the stock in the cash market and sell the corresponding futures contract.

The Rs. 10 difference represents the potential spread before transaction costs and other charges. As the futures contract approaches expiry, the cash and futures prices generally move towards each other.

However, the Rs. 10 difference should not be treated as a guaranteed profit. Brokerage, taxes, bid-ask spreads, execution delays, changes in prices, and other costs can reduce or eliminate the potential gain.

Price differences can occur because markets do not always adjust at exactly the same time.

Common factors include:

• Different demand: Buying or selling pressure can temporarily differ between markets.
• Liquidity differences: An asset may have more buyers or sellers in one market than another.
• Information gaps: New information may be reflected in different markets at different speeds.
• Market volatility: Rapid price movements can temporarily create mismatches.
• Cash and derivative pricing: The price of a futures contract can differ from the current price of its underlying asset.
• Corporate events: Mergers, acquisitions, dividends, or other events can create temporary pricing differences.

Once traders identify these differences, their activity can cause prices to move closer together, reducing the opportunity.

Arbitrage can take different forms depending on the assets and markets involved.

Pure arbitrage

Pure arbitrage involves buying and selling the same asset in different markets to benefit from a price difference. The positions are generally taken close together in time to reduce exposure to broader market movements.

Risk arbitrage

Risk arbitrage involves corporate events such as mergers or acquisitions. A trader takes a position based on the expected outcome of the transaction, so the strategy carries event-related risk.

Statistical arbitrage

Statistical arbitrage uses quantitative models to identify pricing relationships between securities that may temporarily diverge.

Currency arbitrage

Currency arbitrage seeks to benefit from differences in exchange rates for the same currency across markets or trading venues.

Triangular arbitrage

Triangular arbitrage involves three currencies. A trader attempts to benefit when the exchange rates between three currency pairs do not align.

Merger arbitrage

Merger arbitrage focuses on the difference between the current market price of a company's shares and the expected value following a merger or acquisition.

Not every arbitrage strategy has the same risk or return characteristics. The method, assets, costs, and market conditions all matter.

Arbitrage focuses on price differences rather than simply predicting whether an asset's price will rise or fall. However, this does not make the strategy risk-free.

Potential benefits

Arbitrage can offer several potential advantages:

• It can provide an opportunity to benefit from temporary price differences.
• It can reduce reliance on predicting the overall direction of a market.
• It can be applied across different markets and asset classes.
• Arbitrage activity can help bring prices of the same or related assets closer together.
• Technology can help identify and execute opportunities that may be difficult to find manually.

Risks and limitations

The strategy also has important limitations:

• Execution risk: The price difference may disappear before both transactions are completed.
• Transaction costs: Brokerage, taxes, spreads, and other charges can reduce the potential gain.
• Liquidity risk: There may not always be enough buyers or sellers at the expected price.
• Market risk: Prices can change unexpectedly before positions are completed or settled.
• Limited opportunities: Suitable price differences may not be available consistently.
• Small spreads: Even when an opportunity exists, the potential difference may be too small to cover all costs.

Therefore, an apparent price difference does not automatically translate into a realised profit.

Arbitrage mutual funds use the same basic principle within a professionally managed mutual fund structure. The fund manager looks for price differences between the cash and derivatives markets and may take corresponding positions when suitable opportunities arise.

For example, a fund may buy shares in the cash market and simultaneously sell the corresponding futures contract when the pricing difference is considered attractive.

The fund may also hold other permitted instruments depending on its investment strategy and prevailing market conditions.

SEBI classifies Arbitrage Fund under the Hybrid Schemes category. Arbitrage funds are designed to seek opportunities from pricing differences, but their returns are market-linked and are not guaranteed.

No. Arbitrage funds are not risk-free investments.

Their strategy attempts to reduce exposure to the direction of the equity market by taking offsetting positions, but factors such as execution, liquidity, transaction costs, changes in spreads, and the availability of opportunities can affect returns.

SEBI's investor information also describes arbitrage funds as using price differences between the cash and derivatives markets, while noting that the strategy and its outcomes depend on market conditions.

Before investing, check the scheme's current Riskometer, investment objective, portfolio, costs, and scheme-related documents.

If you are considering an arbitrage fund, do not assess it only by looking at a recent return.

Consider:

• Investment strategy: Understand how the fund identifies and uses arbitrage opportunities.
• Riskometer: Check the scheme's current SEBI-mandated risk classification.
• Expense ratio: Consider the costs charged to the scheme.
• Portfolio: Review how the fund deploys its assets.
• Historical performance: Look at performance over different periods rather than relying on a single number.
• Investment horizon: Consider when you may need the money.
• Tax treatment: Check the applicable Income Tax rules for the scheme and your circumstances.

An arbitrage fund's past return does not guarantee its future performance.

An arbitrage fund may be considered by an investor who understands that the investment remains market-linked but wants exposure to a strategy based on price differences between cash and derivatives markets.

For example, Amit has money that he does not need immediately and is comparing different mutual fund categories. Instead of looking only at past returns, he checks the arbitrage fund's strategy, Riskometer, expense ratio, liquidity, tax treatment, and investment horizon. He then decides whether the fund fits his overall financial plan.

The important point is that an arbitrage fund should be assessed on its own characteristics rather than being treated as a substitute for a bank deposit or a guaranteed-return product.

The main difference is the source of the potential return.

In ordinary directional trading, a trader may buy an asset because they expect its price to increase or sell it because they expect the price to fall.

Arbitrage instead focuses on a price difference between the same or related assets or instruments. The trader attempts to take positions that benefit if the price relationship moves towards alignment.

Both strategies involve risks, and neither guarantees a profit.

Arbitrage seeks to benefit from temporary price differences between the same or related assets, markets, or instruments. Arbitrage mutual funds apply this approach mainly through opportunities between cash and derivatives markets. Although the strategy can reduce reliance on predicting overall market direction, it is not risk-free. Before investing, consider the fund's strategy, Riskometer, costs, liquidity, tax treatment, and your investment horizon.

Last reviewed: September 2026

Mutual funds are subject to market risk. Please read the scheme-related documents carefully before investing.