We study the determinants and market impact of sell-side debt research. Analyzing a sample of 5920 debt reports published by 15 brokerage firms from 1999 to 2004, we document that companies with a higher probability of financial distress, lower market-to-book ratio, larger debt, and higher leverage receive more debt research. In addition, we document higher frequency of debt reports around credit ratings downgrades and find that their publication impacts equity prices. The evidence enhances our understanding of the nature of the market forces shaping sell-side debt research and its effect on price formation.

Many firms define their fiscal quarters as 13-week periods so that each fiscal year contains 52 weeks, which leaves out one or two day(s) a year. To compensate, one extra week is added every fifth or sixth year and, consequently, one quarter therein comprises 14 weeks. We find evidence of predictable forecast errors and stock returns in 14-week quarters, suggesting that analysts and investors do not, on average, adjust their expectations for the extra week. The ease with which 14-week quarters can be predicted, and expectations adjusted, suggests a surprising lack of effort on the part of analysts and investors.