According to CoinMeta, the stock price of Nvidia ( NVDA ) fell by 1.29% (2.96 points) on October 12, 2026, and then dropped another 0.87% (1.97 points) in after-hours trading. This decline in stock price occurred after Microsoft ( MSFT ) released its latest AI chip Azure Maia 300, a move aimed at reducing Microsoft's dependence on Nvidia and AMD. Meanwhile, the stock price of AMD also fell by 2.28%, with another 1.46% drop after the market closed. Microsoft's stock price, on the other hand, rose by 1.14% during trading and by 0.18% in after-hours trading. Analysts believe that the release of Microsoft's AI chip may pose a threat to Nvidia and AMD.