This is my understanding of scorecard segmentation.: 
Credit: Our own TT. @ThomasThumb Care to comment?
Credit: Our own TT. @ThomasThumb Care to comment?
The two age factors for score cards are:
1) New credit as defined by AoYA (age of youngest account)
2) File age as defined by AoOA (age of oldest account - open or closed)
Average age of accounts is a scoring attribute but not a scorecard assignment factor. People that see AAoA drop due to new accounts being added may change scorecards but, if so, the reassignment almost certainly relates to new credit.
File thickness is a scorecard assignment factor as well. However, it is a bit hard to nail this one down as it appears to comprise both type/mix of accounts and QTY of accounts. There is a gray region that I would classify as neither thin or thick (say over 4 accounts but less than 11 accounts). I'm in this category since 4 closed accounts dropped off my file.
SJ's file seems to react more strongly to certain scoring attributes than others with thick files. I suspect this is due to maintaining multiple new accounts under 12 months age. I would place him on the new credit-thick file-long credit history scorecard.
As we know Fico 8 has 8 "clean" scorecards and they have stated segmentation factors include credit history (age of file), new credit and depth of credit. Beyond that the exact segmentation is not published. My hypothesis on segmentation as mentioned in other threads is:
I go back and forth on newness segmentation as 1 year or 2 years and depth of credit dividing line as thin/non thin or thick/non thick. Also, mild delinquency was not originally listed in presentations on Fico 8 segmentation. It showed up later. So I think it is a tag along and score limiting attribute within "clean" scorecards as opposed to a true segmentation factor.
@Thomas_Thumb wrote:The two age factors for score cards are:
1) New credit as defined by AoYA (age of youngest account)
2) File age as defined by AoOA (age of oldest account - open or closed)
Average age of accounts is a scoring attribute but not a scorecard assignment factor. People that see AAoA drop due to new accounts being added may change scorecards but, if so, the reassignment almost certainly relates to new credit.
File thickness is a scorecard assignment factor as well. However, it is a bit hard to nail this one down as it appears to comprise both type/mix of accounts and QTY of accounts. There is a gray region that I would classify as neither thin or thick (say over 4 accounts but less than 11 accounts). I'm in this category since 4 closed accounts dropped off my file.
SJ's file seems to react more strongly to certain scoring attributes than others with thick files. I suspect this is due to maintaining multiple new accounts under 12 months age. I would place him on the new credit-thick file-long credit history scorecard.
As we know Fico 8 has 8 "clean" scorecards and they have stated segmentation factors include credit history (age of file), new credit and depth of credit. Beyond that the exact segmentation is not published. My hypothesis on segmentation as mentioned in other threads is:
I go back and forth on newness segmentation as 1 year or 2 years and depth of credit dividing line as thin/non thin or thick/non thick. Also, mild delinquency was not originally listed in presentations on Fico 8 segmentation. It showed up later. So I think it is a tag along and score limiting attribute within "clean" scorecards as opposed to a true segmentation factor.
Fascinating. I guess you've got me pegged. I guess I would be in C-2.
No derogatory items
Age of oldest account > 30 years
Definitely non-thin: total of open & closed accounts in the neighborhood of 60
Lots of new accounts, average age of accounts < 4 years
