Warren Buffett, one of the most respected investors in the world, is famous for his long-term investment philosophy and value investment approach. However, surprisingly, while NVIDIA has become a star in technology stocks and its stock price has continued to soar, Buffett and Berkshire Hathaway, which he leads, have never made a big move into this stock. The reasons can be analyzed from the following aspects:

1. Differences in investment philosophy

Buffett has always advocated investing in businesses that he can understand and grasp. His investment philosophy emphasizes companies with clear business models, stable profitability and strong moats. Although Nvidia has significant technical advantages and market leadership in artificial intelligence and graphics processing units (GPUs), the rapid changes and high risks of the technology industry may be beyond Buffett's "circle of competence."

The technology industry, especially the chip industry, requires investors to have deep expertise and accurate judgment of market prospects. In contrast, Buffett prefers companies with stable cash flow and simple and predictable business models, such as Coca-Cola and insurance companies.

2. Valuation issues

Buffett is known for his cautious investment style, and he is unwilling to pay too high a premium for future high growth. As the stock price hits new highs, Nvidia's price-to-earnings (P/E) and price-to-sales (P/S) ratios also rise. Although Nvidia has demonstrated strong growth potential and market share, the high valuation means that future earnings need very high growth to justify it.

In Buffett's view, Nvidia's current stock price may have already reflected the market's optimistic expectations for its future prospects, and once market sentiment changes, the stock price may fluctuate sharply, which is contrary to his investment philosophy of pursuing stable returns.

3. Concentrated investment strategy

Buffett and his partner Charlie Munger have always preferred concentrated investing, which means investing most of their money in a few companies that they believe have the most potential. This strategy requires them to have a high degree of confidence and a deep understanding of each investment. Therefore, they are extremely cautious in selecting investment targets.

Although Nvidia has performed well, Berkshire already has considerable holdings in other technology giants such as Apple, which makes them not eager to make large investments in Nvidia. Diversifying investment risks is important, but investing too much in the same industry or similar businesses may also increase systemic risks.

4. Historical experience and style

Buffett once said that he doesn't like to invest in companies that require continuous large capital investment and rapid technological updates. The chip industry is highly competitive, and technological progress is changing with each passing day, requiring continuous R&D investment and innovation, and this business model does not fully meet Buffett's investment preferences.

Historically, Buffett has made relatively few investments in the technology sector, and even when he has, such as IBM and Apple, he has only invested in them after seeing a solid profit model and low risk of technological substitution. Therefore, his investment style is more inclined towards companies with long-term competitive advantages and stable cash flow, rather than high-risk, high-return companies that rely on continuous technological innovation.

in conclusion

Buffett's decision not to invest in Nvidia is not because he does not approve of its business and prospects, but because of his consistent investment philosophy and style. He prefers to invest in companies that he can fully understand and buy companies with solid moats at reasonable valuations. Although Nvidia has huge potential and market leadership, its high valuation and high uncertainty in the technology field make it not fully meet Buffett's investment standards.

As investors, we can learn an important lesson from Buffett’s choice: in the investment process, we must stick to our own investment principles and circle of competence, look at market hotspots rationally, and avoid chasing short-term trends, so that we can obtain stable returns in the long run.

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