Core Viewpoint - Nvidia may face increased challenges in 2026 as competitors, including major tech companies, begin to develop and sell their own custom semiconductors, potentially impacting Nvidia's market share [2][3][18] Group 1: Nvidia's Market Position - Nvidia has established itself as a leader in the AI sector, particularly in providing GPUs for high-performance AI applications, achieving a market cap of over $5 trillion at its peak [1][5] - The company currently holds approximately 90% of the data center GPU market, contributing to a stock price increase of over 970% and a revenue growth of nearly 600% over the past three years [6][7] - Nvidia's revenue for Q3 of fiscal 2026 reached $57 billion, a 62% increase year-over-year, with data center sales accounting for $51.2 billion, up 66% from the previous year [7] Group 2: Competitive Landscape - Major competitors such as Advanced Micro Devices, Alphabet, and Amazon are developing their own chips to reduce reliance on Nvidia, with Amazon's Tranium3 chip being four times faster and more efficient than its predecessor [3][11] - Alphabet is reportedly in discussions with Meta Platforms to supply AI infrastructure, which could diminish Nvidia's customer base as Meta is currently a client [13] - The introduction of custom chips by competitors may lead to increased pressure on Nvidia's pricing and market share in the coming years [10][12] Group 3: Financial Metrics and Valuation - Nvidia's current price-to-earnings (P/E) ratio stands at 45.8, with a forward P/E of 39.5, which is lower than the three-year mean of over 80, making it relatively attractive compared to other chipmakers [14][16] - Despite potential challenges, Nvidia is expected to continue generating substantial revenue and profits, maintaining its status as a viable investment option [18]