Rates Still a Risk for Stocks

Key takeaways

  • History has shown that an abrupt move upward in interest rates can lead to a stock market correction, often resulting in a significant impact on returns. With U.S. government budget negotiations ongoing, an extended deficit could push investors to buy longer-dated bonds, likely pushing rates higher.
  • Keeping these risks in mind, investors could benefit from incorporating additional hedges into their portfolios – namely gold and short-dated Treasuries – to protect themselves from such a move

Markets generally go down for one of three reasons: a recession, higher interest rates or an exogenous shock, such as the COVID-19 pandemic or the 9/11 attacks. While I continue to believe stocks will end the year higher, if we do see a correction, higher rates are probably the larger risk.

When considering the impact of interest rates on stocks, it helps to be specific. As I’ve discussed in previous blogs, stocks are most sensitive to a quick upward move in real, or inflation-adjusted, interest rates. The ‘quick’ part is an important qualifier; abrupt moves, rather than gradual adjustments, are more likely to lead to a correction.

This is exactly what happened in late December and early January. Real 10-year yields surged by roughly 0.50% (see Chart 1). Right on cue, stocks posted a modest correction. The S&P 500 fell 5%, while small caps, generally more rate sensitive, fell more than -10%.

Chart 1

U.S. 10-year real yield

U.S. 10-year real yield

That market move was very consistent with history, both short- and long-term. Based on the past three years of data, monthly changes in real 10-year yields have had a very significant impact on market returns, explaining approximately 65% of the variation in S&P 500 monthly changes.