Sensex Falls Over 20% in Dollar Terms in 2026 Amid Weak Sentiment and Rupee Depreciation

The benchmark Sensex has fallen more than 20% so far in 2026 in dollar terms, the steepest in 15 years, as the rupee's weakening has amplified losses for overseas investors.

The Nifty has declined 18.6% in dollar terms, with both indices emerging as the second-biggest laggards among major global markets after Indonesia.

Decline in Rupee Terms

In rupee terms, the Sensex has declined 14.9%, while Nifty has lost 13.1% so far this year.

Foreign investors track the performance of overseas markets in dollar terms as their portfolio returns are typically measured in the US currency.

A weaker rupee reduces their returns when Indian investments are converted back into dollars.

The rupee's depreciation has adversely impacted returns in dollar terms, but the main cause of poor year-to-date returns is driven by the weak sentiment towards Indian equities, said Pratik Gupta, managing director and CEO of Kotak Institutional Equities.

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Contrast with Global Peers

The contrast with several global markets has been stark.

In the US, the S&P 500 has gained 12.2% so far in 2026, while the Nasdaq and Dow Jones have risen 15% and 7%, respectively.

In Europe, meanwhile, the FTSE 100 has gained 6%, while the CAC 40 has declined 4% and the DAX has risen 0.8%.

Asian markets have also largely outperformed Indian equities.

Japan's Nikkei has gained 30%, while Hong Kong's Hang Seng has declined 6% and China's Shenzhen index has risen 0.8%.

Taiwan and South Korea's Kospi have gained 61% and 72%, respectively.

Indonesia's Jakarta Composite and the Philippines index have declined 34% and 11%, respectively.

Market Cap Erosion

The Sensex's dollar-denominated market capitalisation has declined by more than $372 billion so far in 2026, with 10 stocks accounting for around 80% of the erosion.

Reliance Industries has seen the largest decline, with its market capitalisation falling by nearly $70 billion, followed by HDFC Bank and TCS, with declines of around $54 billion and $52 billion, respectively.

Infosys and ITC have recorded market-cap erosion of around $32 billion and $22 billion, respectively, while Maruti Suzuki India and Bharti Airtel have each seen declines of around $19 billion.

Hindustan Unilever and Mahindra & Mahindra have seen their market capitalisation fall by around $15 billion each.

Saion Mukherjee, head of India equity research at Nomura, said the 20% decline itself should not be viewed as a definitive threshold for a bear market, but the correction could affect investor sentiment and fund flows.

Is it like 20% is a bear market? You can call it in some definition, but no line says 15% or 20%, he said.

The bigger point is how this correction impacts investor sentiment and domestic flows.

People have been coming in and supporting the market whenever there is a fall.

Will they continue to do that? said Mukherjee.

The amount of money that's coming into mutual funds as a percentage of financial savings has been at a pretty elevated level in the last four-five years.

For incremental investors to come and keep supporting and put money would require the market to be a bit supportive.

I think that's a challenge.