Your Stock Made 20%. Why Didn't You?

Imagine you are an investor in India.

You find a US company you really like. You research the business, study its financial statements, look at its valuation, and finally decide to invest.

A year later, you check your investment.

You are happy.

You made 20%.

Or did you?

The answer has nothing to do with the company.

It has to do with something happening thousands of kilometres away: the exchange rate.

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When You Invest Abroad, You Are Making More Than One Bet

When an Indian investor buys a US stock, the obvious risk is the stock itself.

If the company performs well, its share price may rise. If the company disappoints, its share price may fall.

But there is another variable.

The investment is priced in US dollars, while the Indian investor ultimately measures wealth in Indian rupees.

That creates another source of return — and another source of risk.

This is why the return you see on a foreign stock exchange is not necessarily the return you experience in your own currency.

Let's Go Back to That 20% Gain

Suppose you invest in a US stock.

The stock rises by 20%.

Investment	Return
US Stock	+20%

Looks simple.

But now imagine that during the same period, the US dollar falls 15% against the Indian rupee.

The Mathematics Behind the Story

Assume you initially invest ₹100.

For simplicity, imagine ₹100 converts into exactly $1.

The stock rises by 20%.

So far, everything looks great.

But then the dollar loses 15% of its value against the rupee.

Component	Movement
US stock	+20%
US dollar vs INR	-15%
Final INR return	+2%

The stock made 20%.

You made only 2% in rupee terms.

This is one of the easiest things to miss when investing internationally.

The Same Investment Can Produce Different Returns

Now imagine three investors buy exactly the same US stock.

They own exactly the same stock.

Yet their realized returns can be completely different.

Currency Can Also Work in Your Favor

Currency risk is not automatically bad.

The same force that can reduce your return can also increase it.

Suppose the US stock rises 20%, but this time the US dollar appreciates 10% against the rupee.

Stock	USD Movement	Indian Investor
+20%	+10%	+32%
+20%	0%	+20%
+20%	-15%	+2%

Currency can therefore become an additional source of return or an additional source of loss.

It Works in the Other Direction Too

Now consider something even more interesting.

The US stock falls by 5%.

At the same time, the US dollar appreciates by 10% against the rupee.

The stock lost money.

But the currency helped the Indian investor.

Stock	Currency	Combined Return
-5%	+10%	+4.5%

A losing foreign stock can therefore still produce a positive home-currency return if the currency movement is favorable enough.

Why Does This Matter?

Global investing gives investors access to companies, industries and economies outside their home country.

It can also provide diversification.

But once you invest across borders, another layer of risk enters the portfolio:

Currency movements can have a meaningful impact on the return of foreign-currency investments.

Currency Risk Isn't Just About Stocks

The same principle applies to many international investments.

Investment	Possible Currency Exposure
Foreign stocks	Equity return + currency movement
Foreign bonds	Bond return + currency movement
Foreign money-market assets	Interest income + currency movement
Foreign real estate	Property return + currency movement

The asset class changes.

The currency problem remains.

So Should You Hedge the Currency?

Once investors understand currency risk, the natural question is:

This is where currency hedging enters the picture.

Investors can use instruments such as forward contracts, futures or options to manage their exposure to exchange-rate movements.

But hedging is not free.

It can involve transaction costs, financing effects, forward points, opportunity costs and other considerations.

Approach	FX Exposure	Potential Benefit	Potential Drawback
Unhedged	High	Can benefit from favorable FX	FX can reduce returns
Partially Hedged	Moderate	Balances exposure and protection	More complex
Fully Hedged	Low	Reduces currency-driven volatility	Hedging costs and lost FX upside

There is no universal rule saying every foreign investment should be fully hedged or completely unhedged.

The decision depends on the investor's objectives, risk tolerance, investment horizon, currency exposure and the cost of hedging.

The Bigger Lesson

When you buy a foreign stock, it is tempting to focus entirely on the company.

You study its revenue.

You study its margins.

You study its valuation.

You study its competitive advantage.

All of that matters.

But if you are a foreign investor, there is another number quietly moving in the background.

It can turn a 20% stock gain into a much smaller gain.

It can turn a modest stock return into a much larger one.

And in some situations, it can turn a positive investment return into a loss in your home currency.

One Final Question

The next time you see a headline saying:

Don't immediately assume that every international investor made 20%.

Ask one more question:

That single question can completely change the story of an investment.

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