Global Chief Economist and Global Head,
Investment Strategy Group
It’s no secret that artificial intelligence (AI) is a pivotal force in the current technological transformation. But as Vanguard Global Chief Economist Joe Davis explains, it may not be wise to focus solely on tech stocks for investment outperformance. Instead, a strategy of diversifying investments across the entire U.S. equity market is more beneficial to capture potential growth and productivity increases beyond just technology.
This Q&A is one in a series featuring Davis’s research on megatrends and the future impact that AI can have on the U.S. economy and investors at large. For more insights, visit our Megatrends hub.
Pay less attention to headline-grabbing statements around concentration in just a handful of stocks, such as the Magnificent 7, or a particular sector, like tech. When it comes to the stock market, two seemingly contradictory statements can both be true. On one hand, large-cap (generally growth) stocks have a lot of staying power for longer than some might think—so the concentration could continue. On the other hand, these enterprises generally do not hold on to their position and growth mode for more than a few decades. Look at a list of the largest S&P 500 members from a few decades ago and compare that to today. Similarly, where were most of the Magnificent 7 stocks just 20 years ago?
How do investors navigate this? A simple but effective way is to own the total stock market, with a broadly diversified index fund. Another way is for the investors with active risk tolerance to work with active managers who can spot the decadal sea change and identify spectacular winners for the coming decade early on.
Takeaways:
- Diversify beyond tech: Tech stocks are highly valued currently, as the tech sector is the epicenter of the potential AI transformation. But, even if AI becomes transformational and catapults the U.S. economy into a high-growth environment, the source of corporate profitability may broaden to other sectors: health care, finance, and manufacturing. Many of these are considered value stocks in the current market environment, so don’t count value out.
- Be mindful of the downside: There is a meaningful chance (30% to 40%) that AI’s impact might be minimal. If AI advancements are slower than we project, and productivity growth and economic expansion end up being disappointing, a strategy that tilts to fixed income and value stocks would be more sensible.
- Own the haystack or go for the needle with the right talent: One way to play both offense and defense is to own the entire U.S. stock market, with a broadly diversified index fund. This way, whether growth continues to outperform or value comes back after a long hiatus, the investor is reasonably positioned. For investors willing to take some active risk, it would be critical to work with managers who have the skills to identify winners early on and spot decadal sea changes, also early enough.
Notes:
- All investing is subject to risk, including the possible loss of the money you invest.
- Diversification does not ensure a profit or protect against a loss.
- Be aware that fluctuations in the financial markets and other factors may cause declines in the value of your account. There is no guarantee that any particular asset allocation or mix of funds will meet your investment objectives or provide you with a given level of income.
- Investments in bonds are subject to interest rate, credit, and inflation risk.