Below is the list of variables and their definitions of the data set that I used to analyze Prosper. It differs from Prosper’s full API (https://api.prosper.com/). But for the ease of community discussion I stayed with this shortened version below for this project. More full-scope analysis may be made in the future.


Variable Description
ListingKey Unique key for each listing, same value as the ‘key’ used in the listing object in the API.
ListingNumber The number that uniquely identifies the listing to the public as displayed on the website.
ListingCreationDate The date the listing was created.
CreditGrade The Credit rating that was assigned at the time the listing went live. Applicable for listings pre-2009 period and will only be populated for those listings.
Term The length of the loan expressed in months.
LoanStatus The current status of the loan: Cancelled, Chargedoff, Completed, Current, Defaulted, FinalPaymentInProgress, PastDue. The PastDue status will be accompanied by a delinquency bucket.
ClosedDate Closed date is applicable for Cancelled, Completed, Chargedoff and Defaulted loan statuses.
BorrowerAPR The Borrower’s Annual Percentage Rate (APR) for the loan.
BorrowerRate The Borrower’s interest rate for this loan.
LenderYield The Lender yield on the loan. Lender yield is equal to the interest rate on the loan less the servicing fee.
EstimatedEffectiveYield Effective yield is equal to the borrower interest rate (i) minus the servicing fee rate, (ii) minus estimated uncollected interest on charge-offs, (iii) plus estimated collected late fees. Applicable for loans originated after July 2009.
EstimatedLoss Estimated loss is the estimated principal loss on charge-offs. Applicable for loans originated after July 2009.
EstimatedReturn The estimated return assigned to the listing at the time it was created. Estimated return is the difference between the Estimated Effective Yield and the Estimated Loss Rate. Applicable for loans originated after July 2009.
ProsperRating (numeric) The Prosper Rating assigned at the time the listing was created: 0 - N/A, 1 - HR, 2 - E, 3 - D, 4 - C, 5 - B, 6 - A, 7 - AA. Applicable for loans originated after July 2009.
ProsperRating (Alpha) The Prosper Rating assigned at the time the listing was created between AA - HR. Applicable for loans originated after July 2009.
ProsperScore A custom risk score built using historical Prosper data. The score ranges from 1-10, with 10 being the best, or lowest risk score. Applicable for loans originated after July 2009.
ListingCategory The category of the listing that the borrower selected when posting their listing: 0 - Not Available, 1 - Debt Consolidation, 2 - Home Improvement, 3 - Business, 4 - Personal Loan, 5 - Student Use, 6 - Auto, 7- Other, 8 - Baby&Adoption, 9 - Boat, 10 - Cosmetic Procedure, 11 - Engagement Ring, 12 - Green Loans, 13 - Household Expenses, 14 - Large Purchases, 15 - Medical/Dental, 16 - Motorcycle, 17 - RV, 18 - Taxes, 19 - Vacation, 20 - Wedding Loans
BorrowerState The two letter abbreviation of the state of the address of the borrower at the time the Listing was created.
Occupation The Occupation selected by the Borrower at the time they created the listing.
EmploymentStatus The employment status of the borrower at the time they posted the listing.
EmploymentStatusDuration The length in months of the employment status at the time the listing was created.
IsBorrowerHomeowner A Borrower will be classified as a homowner if they have a mortgage on their credit profile or provide documentation confirming they are a homeowner.
CurrentlyInGroup Specifies whether or not the Borrower was in a group at the time the listing was created.
GroupKey The Key of the group in which the Borrower is a member of. Value will be null if the borrower does not have a group affiliation.
DateCreditPulled The date the credit profile was pulled.
CreditScoreRangeLower The lower value representing the range of the borrower’s credit score as provided by a consumer credit rating agency.
CreditScoreRangeUpper The upper value representing the range of the borrower’s credit score as provided by a consumer credit rating agency.
FirstRecordedCreditLine The date the first credit line was opened.
CurrentCreditLines Number of current credit lines at the time the credit profile was pulled.
OpenCreditLines Number of open credit lines at the time the credit profile was pulled.
TotalCreditLinespast7years Number of credit lines in the past seven years at the time the credit profile was pulled.
OpenRevolvingAccounts Number of open revolving accounts at the time the credit profile was pulled.
OpenRevolvingMonthlyPayment Monthly payment on revolving accounts at the time the credit profile was pulled.
InquiriesLast6Months Number of inquiries in the past six months at the time the credit profile was pulled.
TotalInquiries Total number of inquiries at the time the credit profile was pulled.
CurrentDelinquencies Number of accounts delinquent at the time the credit profile was pulled.
AmountDelinquent Dollars delinquent at the time the credit profile was pulled.
DelinquenciesLast7Years Number of delinquencies in the past 7 years at the time the credit profile was pulled.
PublicRecordsLast10Years Number of public records in the past 10 years at the time the credit profile was pulled.
PublicRecordsLast12Months Number of public records in the past 12 months at the time the credit profile was pulled.
RevolvingCreditBalance Dollars of revolving credit at the time the credit profile was pulled.
BankcardUtilization The percentage of available revolving credit that is utilized at the time the credit profile was pulled.
AvailableBankcardCredit The total available credit via bank card at the time the credit profile was pulled.
TotalTrades Number of trade lines ever opened at the time the credit profile was pulled.
TradesNeverDelinquent Number of trades that have never been delinquent at the time the credit profile was pulled.
TradesOpenedLast6Months Number of trades opened in the last 6 months at the time the credit profile was pulled.
DebtToIncomeRatio The debt to income ratio of the borrower at the time the credit profile was pulled. This value is Null if the debt to income ratio is not available. This value is capped at 10.01 (any debt to income ratio larger than 1000% will be returned as 1001%).
IncomeRange The income range of the borrower at the time the listing was created.
IncomeVerifiable The borrower indicated they have the required documentation to support their income.
StatedMonthlyIncome The monthly income the borrower stated at the time the listing was created.
LoanKey Unique key for each loan. This is the same key that is used in the API.
TotalProsperLoans Number of Prosper loans the borrower at the time they created this listing. This value will be null if the borrower had no prior loans.
TotalProsperPaymentsBilled Number of on time payments the borrower made on Prosper loans at the time they created this listing. This value will be null if the borrower had no prior loans.
OnTimeProsperPayments Number of on time payments the borrower had made on Prosper loans at the time they created this listing. This value will be null if the borrower has no prior loans.
ProsperPaymentsLessThanOneMonthLate Number of payments the borrower made on Prosper loans that were less than one month late at the time they created this listing. This value will be null if the borrower had no prior loans.
ProsperPaymentsOneMonthPlusLate Number of payments the borrower made on Prosper loans that were greater than one month late at the time they created this listing. This value will be null if the borrower had no prior loans.
ProsperPrincipalBorrowed Total principal borrowed on Prosper loans at the time the listing was created. This value will be null if the borrower had no prior loans.
ProsperPrincipalOutstanding Principal outstanding on Prosper loans at the time the listing was created. This value will be null if the borrower had no prior loans.
ScorexChangeAtTimeOfListing Borrower’s credit score change at the time the credit profile was pulled. This will be the change relative to the borrower’s last Prosper loan. This value will be null if the borrower had no prior loans.
LoanCurrentDaysDelinquent The number of days delinquent.
LoanFirstDefaultedCycleNumber The cycle the loan was charged off. If the loan has not charged off the value will be null.
LoanMonthsSinceOrigination Number of months since the loan originated.
LoanNumber Unique numeric value associated with the loan.
LoanOriginalAmount The origination amount of the loan.
LoanOriginationDate The date the loan was originated.
LoanOriginationQuarter The quarter in which the loan was originated.
MemberKey The unique key that is associated with the borrower. This is the same identifier that is used in the API member object.
MonthlyLoanPayment The scheduled monthly loan payment.
LP_CustomerPayments Pre charge-off cumulative gross payments made by the borrower on the loan. If the loan has charged off, this value will exclude any recoveries.
LP_CustomerPrincipalPayments Pre charge-off cumulative principal payments made by the borrower on the loan. If the loan has charged off, this value will exclude any recoveries.
LP_InterestandFees Pre charge-off cumulative interest and fees paid by the borrower. If the loan has charged off, this value will exclude any recoveries.
LP_ServiceFees Cumulative service fees paid by the investors who have invested in the loan.
LP_CollectionFees Cumulative collection fees paid by the investors who have invested in the loan.
LP_GrossPrincipalLoss The gross charged off amount of the loan.
LP_NetPrincipalLoss The principal that remains uncollected after any recoveries.
LP_NonPrincipalRecoverypayments The interest and fee component of any recovery payments. The current payment policy applies payments in the following order: Fees, interest, principal.
PercentFunded Percent the listing was funded.
Recommendations Number of recommendations the borrower had at the time the listing was created.
InvestmentFromFriendsCount Number of friends that made an investment in the loan.
InvestmentFromFriendsAmount Dollar amount of investments that were made by friends.
Investors The number of investors that funded the loan.