Is the Indian Equity Risk Premium Disappearing? A Valuation Reality Check

There is a number quietly flashing yellow for Indian equity investors.

The spread between the Sensex earnings yield and the US 10-year Treasury yield has turned negative, reaching its lowest level in 14 months.

As of 25th September, the Sensex and Nifty earnings yield was around 5.1%, while the US 10-year Treasury yield had climbed to 5.17%.

At first glance, this looks like a simple valuation statistic...but it isn't.

And that matters because an equity investor is not just buying earnings. They are accepting business risk, valuation risk, economic risk, currency risk, and the occasional market-induced headache.

The question, therefore, is not whether Indian equities have suddenly become unattractive.

The spread that caught our attention

The Sensex earnings yield is essentially the inverse of its price-to-earnings multiple. If the market trades at 20 times earnings, its earnings yield is roughly 5%.

The US 10-year Treasury, meanwhile, is widely treated as one of the world's key reference rates for the risk-free cost of capital.

So, when the Sensex earnings yield is 5.1% and the US 10-year Treasury offers 5.17%, the simple spread becomes slightly negative.

That is a meaningful change.

A year ago, the US 10-year yield was around 4.15%, while the Sensex earnings yield was about 4.5%. Since then, the Treasury yield has risen by roughly 102 basis points, while the Sensex earnings yield has increased by only about 60 basis points.

In other words, the risk-free hurdle has moved faster than the earnings yield available from Indian equities. This spread should not be confused with the textbook equity risk premium.

A proper equity risk premium is forward-looking. It depends on expected earnings growth, dividends, valuation changes, inflation, risk, and the relevant risk-free rate. Comparing a market earnings yield with a US Treasury yield is only a useful market indicator.

Still, it is an indicator worth watching.

Why should an Indian investor care about a US bond?

Capital does not respect geographical boundaries. An overseas investor allocating money across markets has choices.

They can buy Indian equities. They can buy Indian government bonds. They can buy US Treasuries. They can sit in dollar cash. Or they can look at other emerging markets.

When the US 10-year yield moves towards 5%, the opportunity cost of taking additional risk rises.

That doesn't mean a foreign investor will automatically sell India and buy Treasuries. But the required compensation for owning a riskier asset can change.

This is where valuations become important. If an investor can earn a higher return from a relatively low-risk asset, they may become less willing to pay a very high multiple for future growth elsewhere.

The valuation equation is changing

For years, one of the big attractions of Indian equities was the strong structural growth story.

India has rising incomes, formalisation of the economy, financialisation of savings, infrastructure spending, manufacturing ambitions, and a large domestic consumption base.

All of that remains relevant. But a good growth story does not make valuation irrelevant.

Suppose a company is expected to grow earnings at 15-20% for several years. Investors may be willing to pay a premium for that growth. But if global interest rates rise materially, the present value of those future earnings falls.

The farther into the future the earnings are expected to arrive, the more sensitive their present value becomes to the discount rate.

That is one reason high-valuation growth stocks can feel the pressure first when global yields rise.

The issue isn't simply: US yields are high.

Then comes the rupee. It is another link that Indian investors cannot ignore.

Higher US yields can make dollar assets more attractive. If that is accompanied by a stronger dollar, emerging-market currencies can come under pressure.

India has already experienced this combination.

Recently, the Indian rupee touched around 95.92 per dollar, while India's 10-year government bond yield moved above 7%. The pressure can be attributed partly to higher oil prices and expectations of tighter monetary policy.

This creates a second transmission channel.

US yields rise → dollar strengthens → rupee weakens → imported inflation rises → Indian yields face pressure → equity valuations face another headwind.

It is not a mechanical chain. Markets rarely behave that smoothly. But it is an important risk channel. And foreign investors are already reacting.

The recent FPI numbers make the story more tangible.

Foreign investors had returned to Indian equities in July and August, investing roughly Rs 202 bn and Rs 296.3 bn, respectively. But selling resumed in September. By September 28, FPI equity outflows had crossed Rs 206.94 bn, aggregating to a net outflow of Rs 2,451.37 bn in 2026 so far.

Higher US yields, crude prices, geopolitical risks, and currency concerns were among the factors weighing on foreign outflows.

So, is the equity risk premium disappearing?

Not really. At least, we shouldn't make that conclusion from this one spread.

India can still generate strong earnings growth. Indian companies can continue to compound profits. Domestic liquidity remains an important support for the market.

But investors now have a higher global hurdle rate to clear. And when the starting valuation is expensive, that hurdle becomes even more important.

This also explains why earnings growth may become more important than multiple expansion in the next phase of the market. If the PE multiple doesn't expand, investors will increasingly need actual profit growth to drive returns.

Frankly, that is not necessarily a bad thing.

To Conclude

For long-term investors, this is not a signal to abandon equities. It is a reminder to become more selective.

1 First, don't look at the Nifty or Sensex in isolation.

Watch valuations alongside earnings expectations and interest rates.

2 Second, separate businesses from multiples.

A wonderful company bought at an excessive valuation can still produce disappointing returns.

3 Third, pay attention to the US 10-year yield.

It is increasingly important as a global valuation reference, particularly for expensive growth stocks.

4 Fourth, keep asset allocation in perspective.

When the return available from bonds and fixed income improves, the case for holding a diversified portfolio becomes stronger. Not because equities should be abandoned, but because investors no longer need to rely on equities for every unit of return.

Remember that risk premium is not a static number. It moves with prices, earnings, interest rates, inflation, and investor expectations.

The recent negative spread between the Sensex earnings yield and the US 10-year Treasury is therefore less a verdict on Indian equities and more a warning about the price being paid for them.

The long-term India story may remain intact. But the market is reminding investors of something that tends to get forgotten during a bull run: A great economy does not automatically make every stock a great investment.

When the world's risk-free rate starts offering 5%, the price you pay for growth matters a little more than it did yesterday.

Disclaimer: This article is for information purposes only. It is not a recommendation and should not be treated as such.