Investors were not positioned for a Democratic sweep of Congress heading into Tuesday's midterm elections, according to CNBC. Tobin Marcus, head of U.S. policy and politics at Wolfe Research, said investors are signaling "begrudging acceptance" of a base-case Democratic sweep. His firm's survey of more than 100 institutional investors suggests they are not strongly positioned for any particular result.
JPMorgan projects a blue wave could push the S&P 500 down about a half percent on Wednesday. Overnight futures pointed to larger losses. JPMorgan traders predict up to a 1% gain on Wednesday if Republicans hold the House, though CNBC reports that outcome looks less likely.
Analysts flagged sector-level risks. A Democratic win in the Texas governor race could add pressure to AI stocks, according to Marcus, who said a loss there by Republican Gov. Greg Abbott has the "potential to spook" the market in the short term. Goldman Sachs strategists said a Democratic Congress "might limit data center tax incentives, but a national moratorium looks unlikely in any election outcome." Alex Sagal, global equity analyst at Wells Fargo Investment Institute, said a substantial Democratic sweep could limit defense spending growth, though he described the defense earnings outlook as "stable to modestly positive." Healthcare stocks could benefit, according to analysts and investors. Marcus said Democrats will likely focus on restoring expired Affordable Care Act subsidies or unwinding some Medicaid reforms.
Jonathan Krinsky, chief market technician at BTIG, wrote that the S&P 500 has typically averaged a 14% drawdown during the second half of midterm years. He argued that a post-midterm rally is "actually less likely" this time, because the index has already gained double digits in 2026.