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Global Market Updates: Latest AI Rally and Trade Talks — October 21, 2026

South Korea’s KOSPI Surges Over 4%; Exchange Activates Sidecar Mechanism South Korea’s KOSPI index rose more than 4% intraday, triggering the exchange’s sidecar mechanism to suspend programmatic…

Global Market Updates: Latest AI Rally and Trade Talks — October 21, 2026
Abhishek Sharma
Founder & Editor-in-Chief
Published: 3 min read
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Global market updates on Wednesday, October 21, 2026, highlighted a sharp semiconductor rally in Asia, progressing India-US trade talks, and major corporate earnings reports. South Korea’s benchmark KOSPI exchange triggered its sidecar mechanism to suspend programmatic buy orders after rising more than 4% intraday. The advance was supported by a 105.4% year-on-year surge in South Korean exports to $61.6 billion during the first 20 days of October, driven primarily by strong global demand for artificial intelligence memory chips.

Semiconductor Surge and AI Infrastructure Spending

Asian chipmakers advanced strongly, with Samsung Electronics rising 6.8% and SK Hynix gaining more than 7%, while newly listed AI software provider Elice Inc. hit its 30% daily upper limit on the KOSDAQ to reach 79,900 won. In overnight United States trading, Advanced Micro Devices (AMD) jumped over 15% after reporting preliminary first-quarter FY2027 revenue growth of 27%.

Concurrently, SpaceX posted third-quarter revenue of $14.58 billion, beating analyst estimates of $12.72 billion, with AI data-centre rentals generating $7.56 billion against capital expenditure of $19.59 billion. Elon Musk also confirmed that SpaceX and Tesla have established independent director committees to explore a potential merger.

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Competition in the AI hardware and software ecosystem expanded as Google open-sourced TorchTPU on October 20 and Amazon launched a public beta for TorchNeuron, enabling PyTorch models to run on custom accelerators. Meanwhile, Amazon Web Services introduced an "Early Rack Receipt" program to secure Nvidia GB300 server racks in warehouses ahead of data-centre power readiness. The hardware acquisition forms part of Amazon's $220 billion capital expenditure program, which has moved the company's free cash flow into negative territory.

India-US Trade Talks and Refining Discussions

In diplomatic and cross-border trade developments, US President Donald Trump stated that negotiations on a bilateral India-US trade pact were "pretty close" following more than a year of discussions. US Secretary of State Marco Rubio indicated that an agreement focused on technical details could be finalised within weeks, an assessment echoed by US Ambassador to India Sergio Gor and supported by optimism from External Affairs Minister S. Jaishankar.

Alongside trade negotiations, Washington opened talks with Reliance Industries to expand refining of Venezuelan crude oil to counter market disruptions stemming from the Iran conflict. Rubio is scheduled to meet Chairman Mukesh Ambani during a visit to the Jamnagar refinery.

In domestic equity research, brokerage Bernstein reduced its year-end Nifty target to 25,000 from 26,000, citing weak corporate earnings growth, trade uncertainties, and elevated crude oil prices, even as the index's forward 12-month price-to-earnings ratio fell to a six-year low of 16.6.

International Trade Figures and European Yields

Macroeconomic data from Japan showed September exports increased 16.7% year-on-year, missing the 21.3% consensus forecast and leaving a trade deficit of ¥536 billion as crude imports rose 51%.

In European sovereign debt markets, French 10-year government bond yields remained near their highest levels since 2002 amid domestic fiscal debates and upcoming street demonstrations. US Treasury Secretary Scott Bessent downplayed risks of broader market contagion ahead of a scheduled French sovereign rating review by Moody’s on Friday.

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Abhishek Sharma
Founder & Editor-in-Chief

Abhishek Sharma

I’m Abhishek Sharma, an Advocate based in Delhi, entrepreneur, investor, and founder of BigBreakingWire.I am an enrolled Advocate with a strong interest in entrepreneurship, media, and technology. I founded BigBreakingWire, a digital news platform covering breaking news, business, financial markets, companies, and important developments in India and around the world.I also have a software company and take an active interest in technology, software, AI, digital products, and new business ideas.As an investor, I’m interested in discovering and investing in promising businesses and startups. I look for good ideas, strong founders, practical business models, and opportunities with long-term potential.I enjoy building businesses, learning about new industries, and connecting with people who are working on interesting ideas and opportunities.Advocate | Entrepreneur | Investor | Founder & Editor-in-Chief, BigBreakingWire

Last reviewed by Abhishek Sharma on October 21, 2026

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