FIXED INCOME - Semiannual Seasonality in High-Yield Bond Returns - Exploitable seasonal patterns in high-yield bond returns are not limited to the widely studied "January effect." On average, the high-yield sector outperforms ten-year Treasuries by a wider margin between December 1 and May 31 than between June 1 and November 30. Within the high-yield sector, single-Bs outperform double-Bs on ...