Building Blocks of Fixed Income: A Macro Framework

For years, the emphasis within fixed income investing has been to seek security-specific alpha in an illiquid bond market where no single security significantly impacts portfolio returns. This was likely due to the favorable secular macro backdrop of falling interest rates. But as we have experienced in recent years, that macro backdrop has changed, and so too should fixed income investing.

The bulk of fixed income returns can be explained through two macro drivers: credit exposure and interest rates exposure. For each of these return drivers, investors must make critical decisions around allocation (how much exposure) and selection (how you get those exposures), depending on the macro backdrop.

When underlying cash flows (profits in the case of corporate bonds) are improving and spreads are wide, investors should want higher credit allocations. And when they are falling, and spreads are tight, lower allocations. Similarly, investors should want lower interest rate allocations (duration) when interest rates are rising (when growth and/or inflation are accelerating) and higher allocations when interest rates are falling.

Today’s fixed income investors are faced with two dilemmas:

  1. Because corporate profit growth has been so strong, fixed rate corporate bond spreads are historically tight, which creates little opportunity from an overweight allocation. (Chart 1)

  2. Interest rates may be rangebound due to (1) unclear economic growth, (2) a potential Fed cutting cycle and (3) structurally sticky inflation. (Chart 2)

chart 2