Prosper assumes a 26.42% weighted average discount rate on its borrower loans across all credit grades (note 4) with a 7.4% default rate.

PMI's quiet period makes the financial data a little less comparable I believe, but in any case, the gross revenues aren't looking good. I especially like the advertising and marketing expense in comparison to gross revenues, as the number of loans is highly dependent upon advertising I'd think. I also love the equity section of the balance sheet as well as that one little line for $22,940 that says repurchase obligation.
The good news with PMI is that they've cut the fat a little (the salaries) but wait, nope... they just spent more on professional services. Depreciation is down as if they've sold assets (no I didn't read the foot notes or look for that specifically), and their advertising budget has been stripped.
Maybe if they originated, oh, about
20 times more loans than they currently are, they'd see a profit! Too bad their loan volume under service went from $90 million down to about $42 million between Sept of 2008 and Sept of 2009.