KOSPI Jumps More Than 3% as Alphabet’s $200 Billion AI Plan Lifts Chip Stocks

Key Takeaways

• South Korea’s KOSPI climbed more than 3%, led by SK Hynix and Samsung Electronics, as Alphabet’s higher AI spending outlook revived demand for Asian semiconductor stocks.
• Alphabet raised its 2026 capital expenditure forecast to $195–$205 billion after Google Cloud revenue surged 82% year on year.
• Brent crude above $96 and the Japanese yen near a 40-year low remain major risks to the wider Asian market rally.

Alphabet’s AI Spending Outlook Revives Asian Chip Demand

Asian stock markets advanced on Thursday, July 23, as investors responded positively to another significant increase in artificial intelligence infrastructure spending by major US technology companies.

South Korea’s KOSPI surged more than 3%, with semiconductor heavyweights SK Hynix and Samsung Electronics leading the gains. Japan’s Nikkei 225 rose approximately 0.7%, while the MSCI Asia-Pacific index excluding Japan added around 1%.

The regional benchmark was on course for a weekly gain of about 3%, potentially ending two consecutive weeks of declines.

The rally followed Alphabet’s decision to raise its full-year capital expenditure forecast to between $195 billion and $205 billion. The midpoint of the new range is $15 billion above its previous forecast, signalling that investment in data centres, AI computing capacity and supporting infrastructure remains a strategic priority.

For Asian markets, the announcement provided fresh support for memory chip manufacturers, semiconductor foundries and equipment suppliers. These companies can benefit from rising infrastructure orders even when investors remain uncertain about how quickly technology platforms will generate returns from their AI investments.

Why Alphabet’s $200 Billion Plan Matters for SK Hynix and Samsung

Alphabet reported second-quarter revenue of $119.8 billion, representing year-on-year growth of 24%. Google Cloud delivered the most notable expansion, with revenue jumping 82% to $24.8 billion.

The company attributed the acceleration partly to demand for enterprise AI infrastructure and AI-powered services. Alphabet’s operating income increased 30% to $40.8 billion, while its operating margin expanded from 32% to 34%. Alphabet’s official Q2 2026 results showed that the company’s AI investments were being accompanied by strong cloud growth.

That combination mattered for South Korea’s technology sector. Large-scale data centres require substantial quantities of high-bandwidth memory, conventional server memory, storage products and advanced semiconductor components.

SK Hynix is one of the leading suppliers of high-bandwidth memory used in AI accelerators, while Samsung Electronics has extensive operations across memory chips, foundry services and data-centre components.

Alphabet’s revised forecast does not guarantee that every Asian semiconductor company will receive the same level of benefit. However, it strengthens expectations that demand from hyperscale cloud providers could remain elevated through the remainder of 2026.

The KOSPI’s 3% rally therefore reflected more than a reaction to one company’s earnings. It represented renewed confidence in the broader AI hardware supply chain after recent concerns about technology valuations and capital expenditure returns.

Alphabet’s Cash Flow Shows the Cost of the AI Expansion

Although Alphabet’s results supported Asian chip stocks, the company’s spending plan also highlighted the growing cost of competing in AI.

Alphabet invested approximately $44.9 billion in property and equipment during the second quarter, up from $22.4 billion one year earlier. The company generated $39.1 billion in operating cash flow but reported negative quarterly free cash flow of approximately $5.9 billion.

This difference explains why the market response to Alphabet’s earnings was less straightforward than the reaction among Asian semiconductor companies.

Chipmakers and infrastructure suppliers generally receive revenue earlier in the AI investment cycle. Alphabet, Microsoft, Amazon and other cloud companies must subsequently demonstrate that additional capacity can generate sustainable revenue and profits.

Strong Google Cloud growth provided early evidence that demand is materialising. Nevertheless, investors are likely to continue monitoring utilisation rates, cloud margins and free cash flow as Alphabet approaches $200 billion in annual capital expenditure.

Brent Crude Above $96 Threatens the Wider Market Rally

The technology-led rebound came as crude oil prices reached their highest levels in more than six weeks.

Brent crude futures climbed approximately 2.3% to $96.27 per barrel during Asian trading, while West Texas Intermediate rose 1.9% to $88.48. The move followed renewed US strikes on Iran and attacks on oil tankers in the Red Sea.

Iran’s Revolutionary Guards said the Strait of Hormuz remained under their control, while Yemen’s Houthis expanded threats against vessels carrying Saudi oil through the Red Sea and Bab el-Mandeb.

Simultaneous disruption to the Strait of Hormuz and Bab el-Mandeb would affect two of the world’s most important energy shipping routes. The latest escalation has therefore increased the geopolitical risk premium embedded in oil prices. Oil-market reporting on July 23 showed Brent and WTI extending their gains as shipping concerns intensified.

Higher oil prices can raise transportation, electricity and manufacturing costs across Asia. South Korea and Japan are both major energy importers, making their economies particularly sensitive to a sustained increase in crude prices.

The inflation risk has also pushed short-dated US Treasury yields higher. Markets were pricing approximately 42 basis points of Federal Reserve rate increases before the end of 2026, with a September increase fully reflected in interest-rate expectations.

Higher bond yields could eventually reduce the appeal of richly valued technology stocks, even if AI-related demand remains strong.

What Could Move the KOSPI and Asian Markets Next?

The immediate outlook for the KOSPI will remain closely connected to semiconductor demand and upcoming earnings from major US technology companies.

Results and capital expenditure guidance from Microsoft, Meta and Amazon could provide additional evidence about whether the AI infrastructure cycle is accelerating. Further spending increases may support Asian memory and equipment companies, while weaker guidance could quickly challenge the current rally.

Oil prices are the main counterweight. If Brent remains above $95 or shipping disruption intensifies, inflation and interest-rate concerns could overshadow positive technology earnings.

For now, Alphabet’s stronger cloud growth and expanded investment plan have reinforced expectations of sustained AI hardware demand. However, the KOSPI’s ability to hold its gains may depend on whether the AI spending boom remains powerful enough to offset higher energy prices, rising bond yields and weakening regional currencies.