Here is a study done by AnilG in 2013.
http://andirog.blogspot.com/2013/03/lending-club-loans-issued-since-2010.htmlThe Months of Payment chart shows the percentage of all defaulted 36 month (and 60 month) loans as a function of months of payment for loans issued since 2010. The default patterns are very similar for first 10 months of payment. But, we know that 60-month loan with same loan amount pay less monthly payment, hence we receive less total payments (Principals + interests) comparing to a 36-month loan if both defaulted after same # of months. However, since most defaults of 60-month loans happened in first 2 years, we may expect the remaining 60-months loans will compensate the higher loss in the first two years by their higher overall return in remaining 3 years because of much less defaults in this period.
Who has the default ratio of 36-months vs 60-month loans by grade?