Monday, June 16, 2008 - 06/15/08 late loan stats update

Here's the mid-June update to to my late loan statistics charts.

These charts show statistics for the performance of all loans. Each curve represents the set of loans that were created in one calendar month. The vertical axis is the fraction of those loans that have "gone bad", in other words are 1 month late or worse (up to and including default). The horizontal axis is the observation date. All data comes from's performance web page.

A larger, more readable version of that chart can be found here

06/01/08 small late loan chart

Here's a chart of the same data in which each curve has been slid to the left to a common origin. The horizontal axis is now days since loan origination month.

5/15/08 slid

Explanation of methodology can be found in my prior postings in this blog .

An important factor in loan results is how well Prosper collects the payments due on these loans. Please see my prior writings on that subject, including:

Written 05/06/07: Collections is broken

Written 05/04/08: Collections is not improving

PS: The best discussion among lenders can be found at

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