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Shares rally on Nvidia earnings, Samsung strike suspension

Published by Global Banking & Finance Review

Posted on May 21, 2026

4 min read

· Last updated: May 21, 2026

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Asian Shares Rally as Nvidia Earnings and Samsung Strike Pause Lift Markets

Market Overview and Key Drivers

By Gregor Stuart Hunter

SINGAPORE, May 21 (Reuters) - Stocks rose on Thursday as some vessels resumed passage through the Strait of Hormuz, while forecast-beating results at Nvidia and a suspended workers' strike at Samsung Electronics lifted shares of chipmakers.

Asian Markets Performance

MSCI's broadest index of Asia-Pacific shares outside Japan climbed 1.2%, snapping a four-day streak of losses as the KOSPI surged more than 4%.

Oil and Commodities Movement

Brent crude futures edged up 0.7% to $105.76 a barrel in Asia trade, retracing declines after three supertankers passed through the strait on Wednesday and Iran consolidated its control of the waterway.

Wall Street and Global Sentiment

On Wall Street, the S&P 500 rose 1.1%, while the Nasdaq Composite rallied 1.5% after three days of declines, as President Donald Trump said the United States was ready to proceed with further attacks on Iran if Tehran did not agree to a peace deal, but suggested Washington could wait a few days to "get the right answers."

Investor Reactions

"Oil prices declined and other major markets rallied, as investors took comfort from headlines quoting Trump saying the U.S. was in the 'final stages' with Iran," analysts from Westpac wrote in a research report.

Technology Sector Highlights

Nvidia's Impact on Chipmakers

Asian chipmakers' shares rose after Nvidia's better-than-expected revenue forecast on Wednesday as CEO Jensen Huang aimed to reassure investors that the world's most valuable company can sustain blockbuster growth in demand for its flagship AI chips. 

Analyst Commentary

"The chip landscape remains Nvidia’s world with everybody else paying rent, as more sovereigns and enterprises wait in line for Nvidia's chips," said Dan Ives, global head of technology research at Wedbush Securities in New York.

However, Nvidia's shares fell 1.1% in extended trading, while S&P 500 e-mini futures slipped 0.5%.

"The market’s reaction was relatively muted by its own lofty standards," said Tony Sycamore, market analyst at IG in Sydney. "The lack of any China sales in the outlook and guidance that was only modestly ahead of expectations left some investors wanting a bit more fireworks."

Samsung Electronics and Labor Developments

In Seoul, Samsung Electronics shares surged more than 6% after the electronics giant's union said it would suspend industrial action upon reaching a tentative pay deal with the company, averting a strike by nearly 48,000 workers that threatened South Korea's economy and global chip supply.

Regional Market Updates

Japan

Japan's Nikkei 225 share index was up 1.9% after S&P Global's flash manufacturing PMI expanded at a slower pace than a month earlier, slipping to 54.5 in May from 55.1 the previous month.

Export Data

Separately, Japanese exports rose 14.8% year-on-year in April, finance ministry data showed, rising for an eighth straight month and confounding fears of stagflation in the global economy.

Australia

Australian shares were up 1.5% despite a mixed set of leading indicators. Flash PMI data showed activity in the country's service industry slowed to 47.7 in May from 50.7 a month earlier, though a corresponding manufacturing gauge held at 50.2, just above the mark separating expansion from contraction.

Other Financial Markets

Bond Yields and Central Bank Policy

The U.S. 10-year Treasury bond yield rose 1.9 basis points to 4.588%, resuming its climb after snapping a three-day streak of declines on Wednesday. Minutes from the Federal Reserve's April 28-29 meeting showed policymakers' concerns about inflation intensified last month, with a growing number open to the possibility that they may need to raise interest rates.

Cryptocurrency Movements

Bitcoin was down 0.3% at $77,453.44, while ether was 0.3% lower at $2,127.53.

(Reporting by Gregor Stuart Hunter; Editing by Jacqueline Wong)

Key Takeaways

  • Nvidia’s Q2 revenue forecast of around $91B exceeded expectations and it announced an $80 billion share buyback, reinforcing investor confidence (investing.com).
  • Samsung’s union suspended a planned strike involving 48 000 workers after reaching a tentative pay agreement, averting supply disruptions in the global chip market (gmanetwork.com).
  • Increased passage of vessels through the Strait of Hormuz helped stabilize oil markets, contributing to gains in broader Asia-Pacific equities (investing.com)

References

Frequently Asked Questions

What caused the latest rally in global shares?
The rally was driven by Nvidia's strong earnings, a suspended strike at Samsung Electronics, and resumed vessel passage through the Strait of Hormuz.
How did Samsung's strike suspension impact the markets?
Samsung's suspension of the workers' strike boosted its shares by over 6% and eased concerns over global chip supply interruptions.
What role did Nvidia's earnings play in market movement?
Nvidia's better-than-expected revenue forecast lifted chipmaker stocks and supported broader market gains, especially in Asia.
How did oil prices react to developments in the Strait of Hormuz?
Oil prices edged up as vessel passage resumed and tensions eased after Iran consolidated control of the waterway.
What macroeconomic indicators were highlighted in Japan and Australia?
Japan's exports rose for the eighth month, PMIs softened, and Australia's service industry activity slowed, while manufacturing remained steady.

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