A man reacts while watching stock prices on the facade of BSE building after the Sensex crossed 40000 mark, in Mumbai.

A screen on the facade of BSE building displays stock prices as the Sensex crossed 40000 mark, in Mumbai.

BSE building as the Sensex plunges by more than 1000 points, in Mumbai.

People wearing face masks walk past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange. Asian stock markets were mostly lower Monday after Wall...

A woman walks past a bank's electronic board showing the Hong Kong share index at Hong Kong Stock Exchange. Asian shares are rising, despite the rollercoast ride that closed Wall S...

People walk past a bank's electronic board showing the Hong Kong share index in Hong Kong. Asian shares were mostly higher Tuesday, after European stocks rallied and U.S. markets w...

A man walks past a bank electronic board showing the Hong Kong share index outside a Hong Kong local bank. Asian stock markets have risen after Wall Street turned in its fifth stra...

A currency trader walks near the screens showing the Korea Composite Stock Price Index (KOSPI), left, and the foreign exchange rate between U.S. dollar and South Korean won at the ...

A man wearing face mask walks past a bank electronic board showing the Hong Kong share index at Hong Kong Stock Exchange. Shares have skidded in Asia as tensions between the Trump ...

People wearing masks against the spread of the new coronavirus walk past an electronic stock board showing Japan's Nikkei 225 index at a securities firm in Tokyo. Asian shares rose...

Currency traders watch monitors at the foreign exchange dealing room of the KEB Hana Bank headquarters in Seoul, South Korea. Asian stock markets fell further Wednesday as oil pric...

A man wearing face mask walks past a bank electronic board showing the Hong Kong share index at Hong Kong Stock Exchange. Shares were mixed in Asia on Monday, while oil prices have...

A masked man walks past an electronic board showing Hong Kong share index outside a local bank in Hong Kong. Asian stocks edged lower Wednesday after the International Monetary Fun...

People wearing face masks walk past an electronic board showing Hong Kong share index outside a local bank in Hong Kong. Asian shares are rising, echoing the rally on Wall Street f...

This photo provided by the New York Stock Exchange shows the unoccupied NYSE trading floor, closed temporarily for the first time in 228 years as a result of coronavirus concerns.

A lady walks in front of a digital screen inside BSE building as the Sensex goes down in Mumbai.

Security personnel use thermal screening devices on visitors to mitigate the coronavirus pandemic, at BSE Building in Mumbai.

A man walks by an electronic stock board of a securities firm in Tokyo. Major Asian stock markets are higher after Wall Street rallied on US President Donald Trump's promise to pro...

Security personnel use thermal screening devices on visitors to mitigate the coronavirus pandemic, at BSE Building in Mumbai.

A man wears a mask as a preventive measure against coronavirus and watches stock prices on a screen on the BSE building, in Mumbai.