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‘Headlines are scary right now,’ but the new bull market could last another 9 years, according to this veteran investor

Will Daniel
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Will Daniel
Will Daniel
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Will Daniel
By
Will Daniel
Will Daniel
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April 16, 2024, 2:16 PM ET
Traders work on the floor of the New York Stock Exchange on April 5, 2024.
Traders work on the floor of the New York Stock Exchange on April 5, 2024.Photo by Spencer Platt/Getty Images

With the conflict between Israel and Iran escalating in the Middle East, and inflation proving more difficult to tame than expected domestically, the stock market’s meteoric rise has finally been halted—at least for now. After surging more than 27% between the end of last October and March 28, the S&P 500 has dropped roughly 4% over the past two and a half weeks.

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But this is just a temporary correction in a bull market that’s set to reward investors for nearly a decade, argues James Demmert, founder and chief investment officer of Main Street Research, an investment management and market research firm with $2 billion in assets under management.

Demmert, who has spent 35 years in the financial industry and authored three books on investing, including his most recent Wall Street Lessons, explained that he believes stocks were “due for a pullback” after rising in nearly a straight line for six months, but that doesn’t change his long-term thesis that AI will drive earnings growth for years to come. 

“We are buyers of this stock market correction because while the headlines are scary right now, we believe we have entered a new bull market led by the power of artificial intelligence,” he told Fortune via email. “This new bull market can last for another seven to nine years, as AI is expected to drive significant productivity gains for companies across the board, which will strengthen corporate earnings.”

An AI-driven earnings boom—with geopolitical risks 

When it comes to the AI boom, the main question for most professional investors has been clear from the start: Is the near-term hype overly enthusiastic, or is it warranted? And there are still leading voices on both sides of that debate. 

Just this week, Goldman Sachs CEO David Solomon told analysts on an earnings call that AI was a transformational technology and he sees serious opportunity for his company in financing the infrastructure necessary for the AI boom. Companies around the world are repositioning their businesses for AI at an “unprecedented” pace, according to Solomon. But Charles Schwab’s CEO Walter Bettinger II told analysts on his company’s earnings call Monday that he believes it’s going to take time for AI to mature. “I know that may not match some of the hype that we hear some speaking of,” he said.

Still, for Demmert, the rise of AI will help drive corporate earnings in the coming years—and investors shouldn’t miss out due to near-term geopolitical issues. “During this exciting new business cycle that will be driven by artificial intelligence, investors must avoid being impulsive and reactive to events such as the Mideast conflict and instead institute a strategy that is patient, responsive, and opportunistic as these types of events unfold,” he argued.

There are some statistics that back up the cost-cutting and productivity-enhancing abilities of AI that Demmert believes will lift corporate earnings. AI could increase global GDP by $7 trillion over the next decade, according to a study from Goldman Sachs. And McKinsey found that generative AI systems could eventually automate tasks that currently take up 70% of workers’ time on the job.

From U.S. financial giants to Latin American telecoms, companies worldwide are already using AI to reduce labor costs and improve productivity, particularly when it comes to customer service and marketing. But it’s not just major corporations that are taking advantage of the AI boom. Take the example of Batesville Tool & Die, a small manufacturing company in Batesville, Ind., that makes precision metal stamping components. As the Associated Press reported earlier this year, Batesville Tool & Die struggled to attract talent to its small town for years, leading to serious issues for the company. Then management decided to invest in a robot that used AI to “see” the world and mimic human workers, which ended the talent crunch and increased the company’s productivity.

Demmert and other AI bulls believe stories like this are happening all over the world, and those innovations will serve to boost corporate earnings for years to come. Still, the veteran investor warned that stocks may be in for some pain in the near term, particularly if tensions in the Middle East cascade and “other players in the region” get involved. “The magnitude of this stock market correction will depend in large part on what’s going on in the Middle East and how things play out from here,” he said, warning that “any escalation of the current tensions would likely cause a further drop in stocks.”

Emily Bowersock Hill, CEO and founding partner of Bowersock Capital Partners, also told Fortune via email this week that “geopolitical risks are unusually elevated and are likely to remain so.” Meaning: Investors should be cautious. But despite the threat of war in the Middle East—as well as higher inflation and fewer rate cuts—she, too, believes the bull market “remains intact.” And Bowersock Hill has a few ideas for investors looking to take advantage of the AI boom as well. 

“We like sectors that will benefit from AI but have yet to price in the associated long-term productivity gains, including health care and industrials,” she said. “We also like AI-adjacent names within the technology sector that magnify or enable AI’s use.”

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
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