Interest Rate Risk: Hedge, Swap or Shorten?
As 2016 draws to a close, many investors are evaluating what (if any) changes need to be made to their portfolios for 2017. For fixed income investments, a crucial question will be how much interest rate risk is worth taking as we head into the new year. Historically, investors could make these changes in two key ways: shorten duration or swap from fixed coupon bonds to floating rate notes1. However, while these approaches reduce exposure to interest rate risk, they also require the investor to substitute one form of risk for another. In our view, a more intuitive approach could be to simply hedge the interest rate risk of the investor’s existing bond strategy2. Below, we highlight the potential trade-offs of each approach as well as their performance over the last three years.
In its most basic terms, an interest rate-hedged bond strategy3 can be thought of as two portfolios in one: a portfolio of bonds representing the Bloomberg Barclays U.S. Aggregate Bond Index (Agg) and a hedging portfolio. The hedging portfolio seeks to offset interest rate risk from the Agg by shorting U.S. Treasuries of similar duration. When interest rates rise, bond prices decline. However, since the strategy is short U.S. Treasuries, these positions increase in value as rates rise. While no hedge is always perfect, this approach can meaningfully reduce risk in a rising rate environment. Below, we identify how this approach compares in a variety of interest rate environments.
All three approaches can reduce interest rate risk in the portfolio. However, they also come with their own key trade-offs. In the case of a short-maturity bond portfolio,4 while it did generate the highest total returns over the last three years, it also had the most interest rate risk. This dilemma is illustrated in the most recent period of rising rates.5 While the hedged and floating rate generated positive total returns, short maturity lost value. During sustained periods of rising rates, losing less than your performance benchmark feels like more of a consolation prize than a desired outcome.
Holding Period Returns Diverge During Rising Rates
Investors have a variety of options for managing interest rate risk in their bond portfolios. While each approach comes with its own list of trade-offs, each has the potential to add value in a rising rate environment. In our view, many investors have become complacent in the amount of interest rate risk that they assume. While the last several months have been painful, investors need to continue to refine their approach to managing risk in all facets of their portfolio.
1Represented by the Bloomberg Barclays U.S. Floating Rate Note 5 Years Index.
2Represented by the Bloomberg Barclays U.S. Aggregate Index (Agg).
3Represented by the Bloomberg Barclays Rate Hedged U.S. Aggregate Bond Index, Zero Duration.
4Represented by the Bloomberg Barclays 1-3 Year Credit Index.
5Rising rates period represents 7/8/16 through 12/14/16.
7Source: Bloomberg, as of 12/14/16.
Bradley Krom joined WisdomTree as a member of the research team in December 2010. He is involved in creating and communicating WisdomTree’s thoughts on global markets, as well as analyzing existing and new fund strategies. Prior to joining WisdomTree, Bradley served as a senior trader on a proprietary trading desk at TransMarket Group. Bradley is a graduate of the Wharton School, University of Pennsylvania.