Friday, July 27, 2007

Version 1.8.3: performance fix

With a 3rd party site down that I rely on I have modified the code to automatically get the data elsewhere. Typically this is slower but slow is better than not at all.

Some info cannot be retrieved when this 3rd party site is down. The worst case is the popup Market Analysis. But you can always find the same data by simply clicking on Broad, Narrow, Specific to view the full Prosper Market Analysis.

The first time you attempt any of the functions I have to wait for the 3rd party site to timeout. After that I assume it is down and will not check again until you restart IE.

Tuesday, July 24, 2007

Version 1.8.2: Community Payments

I have added to the group info popup the number of community payments made by the GL. I think the general belief is that a community payment indicates an effort by the GL to inflate their Prosper star rating. The 2Mil group and more recently Have Money - Will Bid have used community payments in this manner. Buyer beware on their listings!

I have improved the performance of the Hot List... it was just too slow for me. I constantly use the Hot List to find listings of interest.

I have improved the Favorite Borrowers list. It now has two options, Recent Listings or All Listings. Much nicer to be able to watch the pending verification status. Also your bids will be displayed correctly on all search result pages.

Friday, July 13, 2007

Version 1.8.1: A lot of changes

A general theme in my work is the non-reliance on 3rd parties... which includes myself. I have written my IE extension to embed its functionality within the Prosper website as much as possible. The idea being that you really can't tell where Prosper ends and my extension begins. Since LendingStats has essentially gone offline I had already reworked that logic to rely only on Prosper for the Group performance information. I have utilized other 3rd party sites (including me) to help gather additional data and statistics. I'd rather have one point of failure, that being Prosper. As Prosper continues to improve their API I can rely on them more and more.

In this release even more functionality is getting its data solely from Prosper. This means 100% uptime availability and accuracy for the data, unless Prosper is down and then it doesn't matter anyway.

This release affects these areas:
Hot Lists
Favorite Borrowers
Watch States

There is a cost gaining 100% reliability and accuracy of information. Most notably the speed of the '3 day' and '24 hour' hot lists can take between 1 and 2 minutes to complete. In general the hot list is slower than before, but to me it is worth the time to get the latest data and not worry about if the external server is up.

For your favorite borrowers, there are now two sub-menu options, 'active listings' and 'all member listings.' Hopefully the options are self explanatory. Show only active is the default.

For watching states, the dialog that pops up to display your list of state choices used to show the number of listings for that state even before you clicked a state. This is gone. But the upside is once you click a state you will be presented with the first 25 active listings for that state.


Now some new functionality. If you are not using the 'Similar Loans' feature you really should. I use this to educate myself on patterns ... looking for common themes in the loans that eventually go late. One example is the number of bids... most of the time the loans that are late have less than 50 bids. Which is why I added to the Verify Bids link an indicator based on the quality of lender bidding. Another is the frequency in 'bad' groups. The same 6 keep coming up over and over.

But to the change... on the 'Similar Loans' page you will now find a magic wand next to the loan status. Click this magic wand and you will see that loan's status changes over time.

When reviewing an old listing that became a loan, you will find a magic wand next to the text 'Listing became a loan'... in case you haven't guessed, clicking the wand will display the loan's status changes over time.

The 'Similar Loans' page was not showing the same data as the DQ report. This data should now be accurate. Also the list of late loans was not always current. This should also be much improved... typically only 30 minutes behind (improved reliance on Prosper). And there was a bug in calculating if a group had a default loan, which is now fixed.

Thursday, July 12, 2007

Version 1.8.0: Fantasy Prosper bidding

Eric of Ericscc.com fame has created a new website: FantasyProsper.com. You can learn more about this Prosper forum thread.

I have added a link on the listing detail page that will allow you to navigate to the Fantasy bidding page. It appears under the 'Bid Now' button of course.

Enjoy.

Saturday, July 7, 2007

Version 1.7.9: Bid with 'Confidence' (a new feature)

In my ongoing effort to create the best analysis tools for Prosper loans, I bring you 2 new features in this release and fix one huge missing element.

With these new features I suggest you go to your list of late loans and run these features on those loans. Examine the results and see if you see a pattern in the new Confidence feature or the reliance on a certain group.

0) Since LendingStats.com has not updated their data in almost 20 days (the missing element) I finally decided to find an alternate solution. I really appreciate the work LendingStats has done. But I do not like relying on 3rd parties which is exactly why I preferred to write the IE extension. The majority of the functionality is embedded on the computer you are running or on Prosper's website. BTW, many thanks to Prosper for continuing to improve their API!

With this release, the group performance information will rely solely on Prosper to display the information. As a result some of the data has changed, but only very slightly. The Best case ROI (Return on investment) is based on zero defaulting loans. The Experian ROI factors in the default rates as specified by Experian. The Prosper ROI is based on data gathered so far from actual Prosper loans. Basically loans that are 1 month or more late are considered default.



Please note Have Money is not a group that I like or trust. I believe the GL is utilizing P&D. Plus in just 5 months he has 222 loans. That is 44 loans a month on average. What kind of quality work does he put into each loan?

1) On the listing detail page, the Bid Details link already shows useful information. Warning of potential pump and dump schemes, true group leader participation, and the number of lenders actively bidding on this listing. In my analysis I have determined that being on a loan with less than 50 lenders puts you at a higher risk for a defaulting loan. This was one of the reasons I originally added this feature.

I have gone a step further and added a simple scale which indicates the confidence the listing will not default based on the other lenders bidding. It is broken into two components. The lenders that won their bids and the lenders that lost. Here is the bidding details from a loan I found using my Hot List. The two sets of numbers in this example, 5.7/5.54 and 5.01/4.42, indicate the level of confidence. These numbers represent high confidence.



To help understand the meaning lets use letters, so now we have x/y for the winning bids and a/b for the losing.

Ideally x and y will be close to each other, within a point. Likewise, a and b should be within a point. Ideally x and a should be within a point or two as should y and b.

Now for the analysis. If y or b is negative, then extreme caution should be used before bidding on the loan. If b is quite a few points larger than a this may indicate a pump and dump.

Ideal numbers are greater than 5. Anything below 4 should only be bid on after careful review. The algorithm will continue to evolve. I'll keep you updated.

2) I made a few changes to the loan search result and loan detail pages. From any loan search that presents multiple loans, now when you click to see the details you will be presented with next and previous links on the loan detail page. This makes it a lot easier to review your loans. So find your 3+ month late loans and easily review all of them without having to click back, get the retry message, etc!



Next on the loan detail page I added a link thanks to wiseclerk.com. He is providing the loan status changes over time. So now when you have a loan that just popped up as late you can easily review the loan status changes to see if this is a common occurrence for this borrower or something to be of concern. Just click the 'View loan status change' link.

Friday, July 6, 2007

Market Analysis

Prosper market performance page seems to be broken at the moment. This affects my market analysis links. Hopefully they will address the issue soon.

Monday, July 2, 2007

Version 1.7.8: Some fixes based on Prosper July 1 update

Prosper updated their API on July 1st and in the process broke some fundamental features. There is no workaround. So if you happen to be watching a member or listing or group that has a 'bad' key it will prevent the favorites list from showing. This same Prosper bug has broken the Hot List.

I fixed the change related to the Market Analysis links.

In version 1.7.8 is a fix required to properly show listings with no group.