Inflation Expectations and Markets: When the Bond Tail Wags the Equity Dog

Inflation Expectations and Markets: When the Bond Tail Wags the Equity Dog

Inflation Expectations and Markets: When the Bond Tail Wags the Equity Dog

The rise in bond yields and concurrent shakiness in equity markets may emanate from a subtle but important shift in risk sentiment on inflation. This has important ramifications for stock and bond investors.

In the U.S., both actual inflation and inflation expectations are accelerating. While the increase has been modest so far ­– the core Consumer Price Index (CPI) moved from 1.8% year-over-year in October 2017 to 2.1% year-over-year in March 2018, and breakeven inflation (or BEI, which is the spread between nominal and real (i.e., adjusted for inflation) U.S. Treasury bond yields of the same maturity) for 10-year Treasuries moved from 1.85% to 2.15% over the same time frame – many market participants worry that U.S. inflation could accelerate further. They can point to the large deficit-induced fiscal spending, the likelihood of tariffs on imports and geopolitical turmoil in the Middle East, among other causes.

The important point here is not just the rise in inflation, but an inflection point in investors’ assessment of inflation risk: It is shifting from deflation or too little inflation to too much inflation.

This explains why bond yields have been rising recently while equity prices have been falling, a combination that is confusing many investors who have come to depend on the “reliable” negative correlation between stock and bond prices to reduce the volatility of their portfolios. Over the last several years, if an investor was worried about having too much equity risk, all one had to do was increase bond market exposure, and voilà, the equity risk was hedged. If this strategy no longer works, then investors turn to the next logical step to reduce equity risk: They sell equities! This explains some of the recent confusing price action in equity markets. The bond tail is wagging the equity dog.

A longer-term view of the stock-bond correlation

None of this is necessarily unexpected. As we discussed in our annual Asset Allocation Outlook,Singles and Doubles,” rising inflation, rising volatility and unusual stock-bond correlations were risks investors should be prepared for in 2018. As the chart below shows, U.S. stock-bond correlations were positive for three decades until the turn of the 21st century, and became negative only after the Federal Reserve managed to anchor inflation expectations.


It is important to note that no matter what the near-term correlations are between stocks and bonds, high quality U.S. government bonds have been good performers in nearly all recessions over the past 60 years. For a deeper dive into this issue, please read the recent PIMCO Viewpoint,Treasuries, Stocks and Shocks,” by Jamil Baz and Steve Sapra.

Long-term investors who buy high quality bonds for income or for a hedge against recessions will likely find those objectives fulfilled. However, those who buy high quality bonds to hedge every zig and zag in the equity markets may have more surprises in store.

Read PIMCO’s Asset Allocation Outlook for insights into stocks, bonds and other asset classes.


Mihir Worah is PIMCO’s CIO Asset Allocation and Real Return and a regular contributor to the PIMCO Blog.


PIMCO’s industry-renowned experts analyze the world’s risks and opportunities, from global economic trends to individual securities.


By Month



All investments contain risk and may lose value.  Investing in the bond market is subject to risks, including market, interest rate, issuer, credit, inflation risk, and liquidity risk. The value of most bonds and bond strategies are impacted by changes in interest rates. Bonds and bond strategies with longer durations tend to be more sensitive and volatile than those with shorter durations; bond prices generally fall as interest rates rise, and the current low interest rate environment increases this risk. Current reductions in bond counterparty capacity may contribute to decreased market liquidity and increased price volatility. Bond investments may be worth more or less than the original cost when redeemed.  Equities may decline in value due to both real and perceived general market, economic and industry conditions. Certain U.S. government securities are backed by the full faith of the government. Obligations of U.S. government agencies and authorities are supported by varying degrees but are generally not backed by the full faith of the U.S. government. Portfolios that invest in such securities are not guaranteed and will fluctuate in value.

Statements concerning financial market trends are based on current market conditions, which will fluctuate. References to specific securities and their issuers are not intended and should not be interpreted as recommendations to purchase, sell or hold such securities. There is no guarantee that these investment strategies will work under all market conditions or are suitable for all investors and each investor should evaluate their ability to invest long-term, especially during periods of downturn in the market. Investors should consult their investment professional prior to making an investment decision.