Warren Buffett Says Buy This Vanguard Index Fund -- It Could Turn $400 Per Month Into $835,000 With Help From Nvidia, Apple, and Microsoft

Core Insights - Warren Buffett advocates for investing in S&P 500 index funds, particularly the Vanguard S&P 500 ETF, as a strategy for non-professional investors to achieve long-term growth [2][6][10] Investment Strategy - Investing $400 monthly in an S&P 500 index fund could potentially grow to $835,000 over 30 years, reflecting a 1,810% increase, which translates to an annual return of 10.3% [3][6] - The Vanguard S&P 500 ETF provides exposure to 500 large U.S. companies, covering about 80% of domestic equities and 40% of global equities by market value [5] Top Holdings - The top 10 companies in the S&P 500 by market-cap weight include Nvidia (8.4%), Apple (6.8%), Microsoft (6.5%), Alphabet (5%), Amazon (4%), Broadcom (3%), Meta Platforms (2.4%), Tesla (2.1%), Berkshire Hathaway (1.5%), and JPMorgan Chase (1.4%) [7][11] Market Performance - The S&P 500 has shown consistent performance over the last three decades, making it a reliable investment choice for average investors [10] Earnings Concentration - The top 10 companies account for 41% of the S&P 500 by market-cap weight and approximately 33% of its earnings, indicating a significant concentration that could impact overall index performance [8][9]