Key Takeaways
- • Former hedge fund manager Whitney Tilson urged investors not to let political views drive portfolio decisions, following the 2026 midterm elections that produced a Democratic sweep of the U.S. House and Senate.
- • Tilson cited a long-run chart comparing S&P 500 returns under presidents of each party over 70 years, finding that staying invested regardless of which party held power was the winning strategy.
- • Tilson said investors often judge the economy by which party holds the presidency, with voters of the opposing party consistently calling the economy bad even when data points otherwise.
- • Tilson recommended balancing media sources and relying on high-quality news to counter partisan bias in investment decisions.
Summary
Former hedge fund manager Whitney Tilson is cautioning investors against letting politics shape their investment decisions in the wake of the 2026 midterm elections, which delivered a Democratic sweep of the U.S. House of Representatives and Senate. The election results could alter the outlook for technology and other market sectors, and the markets have recently experienced heightened volatility, according to the article.
In a blog post for Stansberry Research published Nov. 4, Tilson wrote, "Don't let your politics affect your investing." He reused a set of charts he first shared in 2023, ahead of the 2024 election. One chart compares the outcome of investing $1,000 in the S&P 500 Index only during years when presidents of one party controlled the White House over the past 70 years, versus investing the same $1,000 in the index for the full 70 years regardless of which party was in power. According to Tilson, the second strategy, staying invested throughout, produced the superior result.
Tilson urged readers to maintain discipline regardless of their reaction to the results. "No matter how you feel about the results – whether euphoria or despair – don't let it affect your investment decision-making," he wrote.
Tilson also said he regularly hears from readers who describe the economy as terrible based on who occupies the presidency. He noted this pattern holds for supporters of both President Joe Biden and President Donald Trump, with voters of the opposing party increasingly characterizing the economy as poor even when the data suggests otherwise. To counter this bias, he recommended that investors seek out a balance of media sources so they hear both sides of issues, and that they rely on high-quality news outlets.
In a blog post for Stansberry Research published Nov. 4, Tilson wrote, "Don't let your politics affect your investing." He reused a set of charts he first shared in 2023, ahead of the 2024 election. One chart compares the outcome of investing $1,000 in the S&P 500 Index only during years when presidents of one party controlled the White House over the past 70 years, versus investing the same $1,000 in the index for the full 70 years regardless of which party was in power. According to Tilson, the second strategy, staying invested throughout, produced the superior result.
Tilson urged readers to maintain discipline regardless of their reaction to the results. "No matter how you feel about the results – whether euphoria or despair – don't let it affect your investment decision-making," he wrote.
Tilson also said he regularly hears from readers who describe the economy as terrible based on who occupies the presidency. He noted this pattern holds for supporters of both President Joe Biden and President Donald Trump, with voters of the opposing party increasingly characterizing the economy as poor even when the data suggests otherwise. To counter this bias, he recommended that investors seek out a balance of media sources so they hear both sides of issues, and that they rely on high-quality news outlets.
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