CDS-bond basis and bond return predictability

• The CDS-bond basis strongly negatively predicts future returns of corporate bonds and CDS.
• The predictive power of the basis is more significant for bonds than for CDS.
• A convergence trade in bond markets would have high abnormal returns.

We examine the predictive power of the CDS-bond basis for future corporate bond returns. We find that residual basis, the part of the CDS-bond basis that cannot be explained by a wide range of market frictions such as counterparty risk, funding risk, and liquidity risk, strongly negatively predicts excess returns. Controlling for systematic risk factors, including credit risk and liquidity risk, we find that a bond portfolio formed on the residual basis generates a significant abnormal bond return of 1.79% at the 20-day horizon. The abnormal returns due to the residual basis reflect mispricing rather than missing systematic risk factors. These results are robust to different horizons and sample periods and to the various characteristics of bonds. Overall, our results imply a beneficial role of CDS in the bond market as the existence of mispricing between CDS and bonds results in a subsequent price convergence in bonds.