On November 17, 2025, NVIDIA announced a partnership with RIKEN to advance Japan's scientific capabilities by deploying new supercomputers focused on AI and quantum computing[2]. This collaboration highlights NVIDIA's ongoing leadership in high-performance computing and its strategic expansion in global research infrastructure. Despite this announcement, NVDA shares closed at $186.60, down 1.88% for the day, with the decline attributed to broader market concerns about AI stock valuations and anticipation ahead of NVIDIA's upcoming Q3 earnings report. There is no direct evidence that the RIKEN partnership significantly impacted the stock price movement on November 17, 2025.