Nikkei 225 Falls 2.73% as Alphabet AI Costs Shake Japan Tech Stocks
Date: July 23, 2026
Key Takeaways
- The Nikkei 225 closed 2.73% lower at 64,611.15 on July 24 as Japanese semiconductor and AI-related shares faced renewed selling.
- Alphabet’s quarterly capital expenditure reached $44.9 billion, pushing free cash flow to negative $5.9 billion despite rapid Google Cloud growth.
- Advantest, Tokyo Electron, SoftBank Group, and Kioxia led the technology decline, while railway, shipping, and pharmaceutical shares provided limited support.
Alphabet’s AI Spending Shock Reaches the Nikkei 225
The Nikkei 225 experienced a significant drop on July 24, closing at 64,611.15, down 2.73%. This decline was attributed to Alphabet's increasing artificial intelligence budget, which raised concerns about the sustainability of the global AI boom. The index fell as low as 64,201.03 during the session and has lost over 7% in July, entering correction territory earlier in the month.
The broader Topix index also declined, but its losses were less severe than those of the Nikkei, indicating concentrated selling in high-priced technology companies that heavily influence the price-weighted Nikkei 225. Investor sentiment weakened after Alphabet's shares dropped approximately 7.2% to $317.69 in New York, following a broader retreat in US technology stocks, with the Nasdaq Composite falling over 2%.
Why Strong Google Cloud Growth Failed to Reassure Investors
Despite Alphabet's second-quarter results showing strong demand for AI services, with total revenue increasing 24% year-on-year to $119.8 billion and Google Cloud revenue surging 82% to $24.8 billion, investors were concerned about the company's capital expenditures. Alphabet's quarterly capital expenditure reached $44.9 billion, surpassing the $39.1 billion generated through operating activities, resulting in a negative free cash flow of approximately $5.9 billion for the quarter.
This negative free cash flow indicates that Alphabet's infrastructure investments exceeded cash generated from operations, although the company reported a 30% increase in operating income. Alphabet also raised its expected capital expenditure for 2026 to between $195 billion and $205 billion, highlighting the need for additional computing capacity to meet customer demand.
Japan’s AI Hardware Leaders Bear the Brunt
The decline in Alphabet's share price quickly affected Japanese companies involved in the AI hardware supply chain. Advantest, a semiconductor-testing equipment manufacturer, fell 6.33%, while Tokyo Electron declined 5.43%. Other companies like SoftBank Group and Kioxia also experienced significant losses. This sell-off did not indicate a sudden drop in demand for AI chips but rather a growing sensitivity to the economics of the AI investment cycle.
Domestic Shares Provide Limited Protection
Not all sectors were negatively impacted; railway stocks advanced as investors shifted towards companies with more domestic revenue and less exposure to AI valuations. Companies like Central Japan Railway and East Japan Railway saw gains, as did shipping companies and pharmaceutical firms. This divergence suggests a rotation in investor sentiment rather than a complete withdrawal from Japanese equities.
What Could Move the Nikkei 225 Next?
Upcoming corporate earnings will be crucial in determining the stability of the Nikkei 225. Strong guidance from domestic semiconductor and technology companies could help separate Japan's earnings outlook from concerns surrounding US AI expenditure. Additionally, the relationship between AI expenditure and cash generation will be a key focus for investors moving forward.
Alphabet Exposes the AI Boom’s Capital-Intensity Risk
Alphabet's results highlighted the capital-intensive nature of the AI boom. While demand for AI services remains strong, the required investments in infrastructure are substantial and growing. The sell-off in the Nikkei 225 reflects a broader reassessment of the AI investment cycle and the time it may take to generate sustainable cash returns.