Election Night Will Make Noise, but Yields Will Move Your Portfolio

Will the stock market care who wins on Tuesday? Probably less than your news feed will. Between the countdown coverage and the instant punditry, election night is built to feel like a market event. We think it is mostly a television event.

Here is the setup. The midterms are on November 3, and the pre-election research from the big asset managers points the same way. J.P. Morgan's asset management arm describes a likely outcome of divided government and policy gridlock. As Economic Times summarizes it, polls suggest Democrats could take one chamber of Congress without a veto-proof majority. In other words, we think the base case is one investors have probably had weeks to absorb.

A priced-in outcome is not a catalyst

Markets move on surprises, not on outcomes everyone expects. Sterling Capital makes this point for bonds: fixed income typically discounts anticipated results well in advance, and in its view the biggest election-driven moves, such as the 2016 presidential election and the Brexit referendum, followed genuine surprises. A midterm that lands roughly where the polls say is the opposite of a surprise.

Even the more cautious voices keep the stakes modest. Lombard Odier says the midterms are a potential source of near-term volatility, not a lasting market headwind, and that profit margins, earnings growth and interest rates will stay the dominant forces afterward. Morgan Stanley notes that equities have historically often done better after midterms, as uncertainty fades. That is a historical tendency, not a promise, and we would not build a plan on it. But it fits the larger point: the vote clears a question mark, and that rarely rewrites a portfolio.

The real election-related risk is the deficit, not the winner

Here is where we would nuance the "gridlock is good" folk wisdom. The old pattern says a divided Congress tends to push Treasury yields lower. This time, Bloomberg reports, bond investors are skeptical that gridlock will ease their worries about the US fiscal trajectory the way it has for decades. Wells Fargo Investment Institute makes a similar argument: markets will likely care less about gridlock and more about how much fiscal negotiations increase Treasury borrowing needs and affect the path of longer-term yields.

That matters because, in our view, yields are already the main story. The 10-year Treasury yield closed at 4.98% on October 29, down from an October high of 5.31%, according to 247WallSt. A move of a third of a percentage point in a few weeks, with the yield still near 5%, is probably a bigger input for stock valuations, mortgage costs and borrowing than any single House race. Our read: if election night moves your portfolio, it will most likely be through the bond market and the deficit narrative, not through who holds the gavel.

What to do with all this

Not much, and that is the point. We aren't giving personalized advice, and your situation, time horizon and local tax rules are your own. But as a general principle, the argument for changing an allocation because of one night's results looks weak. The scenario that could justify action is a genuine surprise, such as a result far outside the polls, and even then the move would be about repricing risk, not predicting a winner.

Our verdict: expect noise on Tuesday night and Wednesday morning, especially in bonds. If you hold a plan you made when you were calm, the election is a good day to leave it alone. If you want to spend attention somewhere useful, watch the 10-year yield and the deficit debate in the weeks after the vote. Those will tell you far more than a map of red and blue.