Asset Class Reactions to Monthly Inflation Data

How do individual asset classes react to monthly inflation indications? To investigate, we relate future monthly returns for the following 10 asset class exchange-traded fund (ETF) proxies to monthly changes in the U.S. Consumer Price Index (CPI):

• Equities:
  • SPDR S&P 500 (SPY)
  • iShares Russell 2000 Index (IWM)
  • iShares MSCI EAFE Index (EFA)
  • iShares MSCI Emerging Markets Index (EEM)
• Bonds:
  • iShares Barclays 20+ Year Treasury Bond (TLT)
  • iShares iBoxx $ Investment Grade Corporate Bond (LQD)
  • iShares JPMorgan Emerging Markets Bond Fund (EMB)
• Real assets:
  • Vanguard REIT ETF (VNQ)
  • SPDR Gold Shares (GLD)
  • Invesco DB Commodity Index Tracking (DBC)

Using monthly CPI data (all items) and monthly dividend-adjusted returns for the above 10 asset class proxy ETFs as available from July 2002 through September 2023, we find that: (more…)