As equity investors struggle to divine how long the coronavirus will weigh on U.S. activity, there’s another risk arriving right on schedule: The 2020 presidential election.

Investors are pricing volatility on the S&P 500 Index at the six-month point higher than at the one-year mark. Typically, the curve is upward-sloping, but that’s been upended as traders buy protection that kicks in around election time.

“The kink at six months reflects not just the risk of a potential second wave of infections in the fall but also the upcoming U.S. election,” wrote Mandy Xu, the chief equity derivatives strategist at Credit Suisse. “We don’t see this pronounced kink in other global indices with both Euro Stoxx 50 and Nikkei 225 vol curves relatively flat in the first six months.”

In addition, the October VIX futures contract -- whose underlying options will encompass the early Nov. 3 vote at expiry -- has seen its premium to both the September and November contracts trend higher over the past month. VIX futures are tied to the Cboe Volatility Index, a gauge of the 30-day implied volatility of the S&P 500 over the next 30 days.

To be sure, the rise of presumptive Democratic nominee Joe Biden and end of Senator Bernie Sanders’ presidential campaign has somewhat allayed election-centric fears. Peak election hitters, as indicated by the premium of the October VIX to neighboring contracts, coincided with South Carolina Rep. Jim Clyburn’s endorsement of the former vice president ahead of that state’s primary, fortifying his support ahead of a crucial vote.

Even so, the investment calculus for U.S. stocks could see a wholesale shift depending on the outcome, according to Wall Street, particularly if the 2018 corporate tax cuts were upended.

“The tax law could be reversed depending on the election result,” wrote David Kostin, chief U.S. equity strategist at Goldman Sachs. “If so, 2021 earnings per share would fall by $19 and imply a P/E multiple roughly 15% higher than the already stretched valuation.”

Kostin joins the likes of BlackRock’s Larry Fink, Bridgewater’s Ray Dalio, and his former boss Lloyd Blankfein in warning that personal or corporate tax rates are likely to rise in light of the swelling federal deficits to combat the economic impact of the coronavirus.

This article was provided by Bloomberg News.