NVIDIA Hits $4 Trillion as Japan Takes a Quantum Leap

On July 10, 2025, NVIDIA became the first company in history to close above $4 trillion in market capitalization, driven by insatiable global demand for its AI chips and data center hardware. The milestone underscored how central AI infrastructure has become to the global economy and validated the enormous investments that companies worldwide have made in AI computing capacity.

NVIDIA's dominance in the AI chip market has implications that extend far beyond Wall Street. Every major AI model, from GPT-5 to Gemini to Claude, relies on NVIDIA GPUs for training and inference. The company's trajectory serves as a barometer for the health and momentum of the entire AI industry.

In July 2025, a consortium led by Osaka University successfully launched the operation of a fully domestically developed superconducting quantum computer. Every key component, from hardware to software, was designed and built in Japan. The Japanese government designated 2025 as the launch year of quantum industrialization, signaling a commitment to technological sovereignty in next-generation computing.

While quantum computing remains years away from broad commercial application, Japan's investment in domestic quantum capabilities is strategically significant. Combined with the semiconductor initiatives announced the previous year, Japan is building a comprehensive technology stack that reduces dependence on foreign suppliers for critical computing infrastructure.

July also saw Meta form a new research lab focused on superintelligence, reportedly offering nine-figure compensation packages to recruit top AI researchers. Reports emerged that Meta was considering abandoning its Llama 4 Behemoth model in favor of a closed-source approach, suggesting that even the most vocal open-source advocates face tension between openness and competitive advantage.

For businesses in Japan, these infrastructure developments paint a clear picture: the AI economy is becoming as foundational as the internet economy. Companies that invest in understanding and leveraging AI infrastructure now will be the ones that thrive in the coming decade. Japan's dual investments in quantum computing and AI semiconductors position the country to be a key player in this future.