Commercial & Residential Mortgage Finance Data: Collateral Values, Loan-Level Tapes and Agency Disclosure · Head-to-head
Data.gov Federal Mortgage Datasets Hub vs Ginnie Mae Investor Disclosure Portal
Which commercial & residential mortgage finance data: collateral values, loan-level tapes and agency disclosure data fits your job: Data.gov Federal Mortgage Datasets Hub, or Ginnie Mae Investor Disclosure Portal. API, files, or your warehouse. Daily, weekly, or hourly.
Data.gov Federal Mortgage Datasets Hub
Ginnie Mae Investor Disclosure Portal
Where the fields line up
No shared field names. These two answer different questions.
| Field | Data.gov Federal Mortgage Datasets Hub | Ginnie Mae Investor Disclosure Portal |
|---|---|---|
rank | Position of the entry in the mortgage-query result set when sorted by relevance. | not in this set |
title | Dataset title from the catalog record. | not in this set |
description | Publisher-supplied abstract of the dataset. | not in this set |
organization | Publishing agency, federal or harvested state and municipal. | not in this set |
modified | Last-updated timestamp the publisher declares for the dataset. | not in this set |
accrual_periodicity | ISO 8601 release-cadence code the publisher declares, e.g. R/P3M for quarterly. | not in this set |
distribution_formats | Resource format labels declared across the dataset's distributions. | not in this set |
described_by | Reference to the publisher's technical documentation, such as a data dictionary. | not in this set |
cusip | not in this set | Nine-character security identifier accepted as a primary search key in Disclosure Data Search and Tax and Factor Data Search. |
pool_number | not in this set | Ginnie Mae pool identifier accepted alongside the CUSIP as a search key; lists of pool numbers and/or CUSIPs can be submitted to the tax and factor lookup. |
security_type | not in this set | Security class of the record: MBS Single Family, Multifamily, Multi-class, HMBS, REMIC or Platinum. |
pool_factor | not in this set | Current pool factor returned by the tax and factor lookup, viewable with a twelve-month history or organised by tax year. |
Coverage, side by side
| Data.gov Federal Mortgage Datasets Hub | Ginnie Mae Investor Disclosure Portal | |
|---|---|---|
| Geographic | — | United States - single-family and multifamily pools nationwide, searchable by security rather than geography |
| Temporal | — | Current reporting period for Disclosure Plus pool-level queries; current factor with a twelve-month history or by WHFIT tax year; historical and current liquidation data |
| Granularity | — | Security and pool level keyed on CUSIP or pool number across MBS, HMBS, REMIC and Platinum; loan level for multifamily securities and for cohort and delinquency aggregations |
What each contains
Pick by fit, not by loyalty.
| Data.gov Federal Mortgage Datasets Hub | Ginnie Mae Investor Disclosure Portal | |
|---|---|---|
| Entity identifier | No standalone ID among the eight documented fields - `title` carries the identity, e.g. 'National Mortgage Database Aggregate Statistics' | `CUSIP Number` nine-character security identifier (e.g. 36295XBY0) plus `Pool Number` (e.g. 683255) as twin search keys |
| Name-like label | `title` official dataset title from the DCAT record | `Security Type` class label - MBS Single Family, Multifamily, Multi-class, HMBS, REMIC or Platinum |
| Publisher attribution | `organization` publishing agency - FHFA, CFPB, Board of Governors of the Federal Reserve System | None - every record traces to a single issuer, so the dictionary needs no publisher column |
| Recency stamp | `modified` 'Dataset Last Updated' timestamp on each record | `Issuance Date` pool issuance metric plus `Tax Year` WHFIT organizing dimension |
| Classification code | `accrualPeriodicity` ISO cadence code, e.g. R/P3M for quarterly | `Pool Type` and `Loan Status` enums - pool classes and current/delinquent/forbearance states |
| Numeric measure | `_score` search relevance score returned with results | `Pool Factor`, `RPB`, `Interest Rate`, `Delinquency Rate`, `CPR`, `Liquidation Proceeds`, `MIP Collections` |
| Pointer field | A resource link to the holding agency plus `describedBy`, a pointer to technical documentation, e.g. FHFA's NMDB data dictionary | `Collateral Pool List` mapping a REMIC or Platinum structure to its underlying pools |
| Descriptor text | `description` publisher-supplied abstract per record | None among the twenty fields - reports carry numbers, enums and identifiers, not prose |
What each does better
the Data.gov Federal Mortgage Datasets Hub
Breadth no single issuer can match. The catalog reaches every federal mortgage publisher at once - FHFA, the CFPB, the Federal Reserve board - and harvests state and city catalogs alongside them, so Maryland single-family loans, Iowa and New York sets and the Los Angeles denial series sit in the same index as national collections. The portal sees exactly one issuer's book.
Datasets the portal cannot see at all. HMDA's loan-level public files, the five percent national mortgage sample behind NMDB, quarterly origination surveys of about 6,000 borrowers, aggregate mortgage debt outstanding - these exist as cataloged records only on the hub side, each carrying its publisher, last-updated stamp and documentation pointer in the verified eight-field dictionary.
Discovery mechanics. Ranked results with relevance scores and monthly view counts make triage across 142 mortgage matches fast in a way a CUSIP-keyed lookup is not designed to do.
the Ginnie Mae Investor Disclosure Portal
Depth on named pools. Twenty verified fields reach figures no catalog card carries: current pool factor readable with twelve months of history or organized by WHFIT tax year, remaining principal balance, interest rate, delinquency rate splitting current, delinquent and forbearance loans, forbearance trend, conditional prepayment rates, liquidation proceeds and mortgage-insurance premium collections.
Structure-aware reporting. The Disclosure Plus MBS Tool alone runs seven report areas; the HMBS tool adds a Loan Purpose report; the REMIC/Platinum tool offers MBS Platinum, HMBS Platinum and MBS Platinum Loan Type views; the multifamily tool runs Pool & Loan Information down to property type and per-loan balance. The Collateral Pool List even maps a REMIC or Platinum structure back to its underlying pools.
The verdict
Verdict: sample both, pick by fit. Let the question decide.
If the question surveys the landscape - which federal mortgage datasets exist, where HMDA or NMDB files live relative to state series, how aggregate mortgage debt has moved - Data.gov Federal Mortgage Datasets Hub is shaped for it, and its 7/10 score reflects a clean, verified catalog dictionary behind 142 relevant records.
If the question surveils a book - tomorrow's factor on a given CUSIP, prepayment speed by vintage cohort, delinquency and forbearance on a multifamily pool - Ginnie Mae Investor Disclosure Portal holds records the hub does not attempt.
Three quick tests settle most cases. Need to discover a source you cannot name yet? Only the hub travels. Need a number on a pool you already own? Only the portal reaches it. Need the discovered shortlist and the pool-level tape behind it in one deliverable? That is the both-of-them case, and in mortgage work it comes up constantly.
Sample both, pick by fit. See Data.gov Federal Mortgage Datasets Hub · See Ginnie Mae Investor Disclosure Portal
Fair questions
Is the Data.gov Federal Mortgage Datasets Hub better than the Ginnie Mae Investor Disclosure Portal?
The hub indexes 142 federal datasets matching 'mortgage' - breadth across every agency. Sample both, pick by fit.
Can you get pool factors or CPR out of the Data.gov mortgage hub?
No. Its eight documented fields describe catalog records - title, publishing organization, last-updated stamp, documentation pointer - not securities performance. Pool Factor and CPR live on the Ginnie Mae side, in the tax-and-factor lookup and the CPR Analysis report, keyed by CUSIP number or pool number.
Do the two datasets overlap anywhere?
Only structurally: both carry name-like labels and date stamps, and a pool number can surface inside a hub title such as a state single-family series. There is no shared key between a catalog card and a CUSIP. Teams bridge them by matching catalog titles and agency names against pool identifiers, and Datadory finishes that match before delivery.
Which dataset covers more ground?
Depends which count you mean. The hub reaches 552,271 cataloged federal records, 142 of them mortgage matches, spanning HMDA files from 2007 onward, FHFA's five percent national mortgage sample and state and city series. The portal reaches one issuer's universe - pools on the order of hundreds of thousands, read at security, pool and multifamily-loan level.
Can Datadory deliver both datasets together?
Yes. Either record arrives alone or merged onto one calendar, aligned on identifiers so the catalog-to-CUSIP join is finished before it reaches you - delivered daily, weekly, or hourly, your call. Name the agencies, pools and date windows when you request the sample and it lands pre-cut with field definitions attached.