Sugar Rush or Sustained Gain? How Tax Cuts Mislead Equity Investors

The prospect of corporate tax cuts put a brief charge into the US financial markets following the November election of Donald Trump as US president. This short-lived “Trump trade” saw the Dow Jones Industrial Average notch its biggest one-day gain in two years, while the S&P 500 and tech-heavy NASDAQ also climbed to record highs. The bump at least in part reflected investors’ expectations for corporate tax cuts under a new administration that would conceivably boost corporate earnings. But tax cuts don’t affect companies equally, and we believe investors should spend more time focusing on business models than tax regimes.

We’ve been here before. After President-elect Trump’s first victory in 2016, stocks rallied on hopes for corporate tax cuts. Eventually, the Tax Cuts and Jobs Act (TCJA) of 2017 lopped the top corporate income tax rate from 35% to 21%. This sweeping tax overhaul also repealed the corporate alternative minimum tax, accelerated business deductions and changed how foreign-sourced corporate income is taxed.

Lower taxes help support the competitiveness of US companies on the global stage. But tax cuts don’t make better businesses, and no struggling firm magically became a better buy under the TCJA. On the contrary, corporate tax cuts tend to benefit already-thriving businesses, while undercutting more vulnerable firms. This is especially true in the current environment.

To understand why, we first need to examine how companies react to tax cuts.