Today's investors face a key challenge: how to keep their investment portfolio balanced while big technology companies reach new highs. It's easy to get excited about companies that have done well lately, but smart long-term investing means thinking about both growth and managing risk.
The biggest technology companies are called the "Magnificent 7." These seven companies - Apple, Microsoft, Nvidia, Amazon, Alphabet, Meta, and Tesla - now make up about 35% of the S&P 500 stock index. This means when you invest in the S&P 500, over one-third of your money goes to just these seven companies.
New technology has always driven stock markets
Artificial intelligence and old railroad companies might seem very different, but they follow similar patterns in the stock market. In the 1860s, railroad stocks dominated markets just like technology stocks do now. The Pennsylvania Railroad was once the world's largest company.
This same pattern happened during the dot-com boom of the 1990s when internet companies became extremely popular with investors. Going back further, new technologies like the telegraph, electric power, and telephones created similar excitement and market changes.
Each wave follows the same steps: doubt, quick adoption, market excitement, and finally becoming part of everyday business. Railroads didn't disappear - they became a normal part of how goods move around the country. Many dot-com companies failed, but others became today's technology leaders.
Stock prices matter as much as company growth
The real question isn't whether AI will be important, but whether today's stock prices make sense. The S&P 500's price-to-earnings ratio (a measure of how expensive stocks are) is now 22.5, close to the all-time high of 24.5.
Why are these technology stocks so expensive? First, companies invested $109 billion in AI in 2024, with hundreds of billions more planned. Second, many businesses and people are quickly starting to use AI tools, which creates more demand for computing power.
The problem is that markets often expect new technologies to make money faster than they actually do. During the 1990s, some investors thought internet companies didn't need to follow normal rules about profits. When reality didn't meet expectations, technology stocks fell 78% and many companies failed.
Managing risk while finding opportunities
The Magnificent 7 companies can fall just as fast as they rise. In 2022, when interest rates went up quickly, these stocks dropped about 50% on average.
Since these seven companies make up such a big part of major stock indexes, almost all investors own them whether they know it or not. Having too much money in just a few investments is called "concentration risk" - the opposite of diversification (spreading your money across many different investments).
The chart above shows an "equal-weighted" version of the S&P 500, which gives each company the same importance regardless of size. Surprisingly, this approach has actually performed better than the regular S&P 500 over the past 30 years, even though the big technology companies have done so well recently.
This doesn't mean you should avoid technology stocks completely. Instead, it shows why keeping a balanced portfolio is important for long-term success.
The bottom line? AI trends create both opportunities and risks for investors. Success comes from keeping a balanced portfolio that matches your long-term goals, not from trying to pick winning stocks.
The content is developed from sources believed to be providing accurate information. The information in this material is not intended as tax or legal advice. Please consult legal or tax professionals for specific information regarding your individual situation. The opinions expressed and material provided are for general information, and should not be considered a solicitation for the purchase or sale of any security.