{
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  "slug": "structured-finance/jhf-mbs-mechanics",
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  "domain": "structured-finance",
  "title": "JHF MBS mechanics (Japan Housing Finance Agency)",
  "entry_type": "wiki_entry",
  "frontmatter": {
    "title": "JHF MBS mechanics (Japan Housing Finance Agency)",
    "aliases": [
      "JHF MBS",
      "JHF月次MBS",
      "Japan Housing Finance Agency MBS",
      "Flat 35 MBS",
      "住宅金融支援機構MBS",
      "JHF MBS Trust",
      "JHF monthly MBS"
    ],
    "domain": "structured-finance",
    "type": null,
    "created": "2026-05-25",
    "last_updated": "2026-07-29",
    "last_tended": "2026-07-29",
    "review_by": "2027-01-29",
    "confidence": "likely",
    "tags": [
      "structured-finance",
      "mbs",
      "jhf",
      "securitization",
      "japan",
      "public-credit",
      "flat-35"
    ],
    "status": "active",
    "canonical_anchor": null,
    "related": [],
    "note": null,
    "sources": [
      "https://www.jhf.go.jp/english/mbs_faq.html",
      "https://www.jhf.go.jp/files/topics/5876_ext_99_0.pdf",
      "https://www.jhf.go.jp/files/topics/5007_ext_99_1.pdf",
      "https://www.jhf.go.jp/about/investor/shisan_tanpo/kihatsu/factor.html"
    ]
  },
  "summary": "The Japan Housing Finance Agency (JHF) buys eligible Flat 35 fixed-rate residential mortgages from participating financial institutions and issues asset-backed agency bonds. Ordinary monthly JHF MBS are not a 90–99% senior tranche paired with a 1–10% subordinated tranche, and JHF does not merely gua",
  "headings": [
    "JHF MBS mechanics (Japan Housing Finance Agency)",
    "TL;DR",
    "Wiki route",
    "1. Flat 35 origination",
    "2. Monthly MBS issuance cadence",
    "3. MBS Trust structure",
    "4. Credit risk before and after a beneficiary-interest event",
    "5. Ordinary monthly MBS and Green MBS credit enhancement",
    "6. Prepayment behavior",
    "7. Investor base"
  ],
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      "policy-finance/INDEX",
      "policy-finance/japan-housing-finance-agency",
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      "structured-finance/INDEX",
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      "structured-finance/japan-trust-beneficial-interest-vs-spv",
      "structured-finance/jhf-mbs-vs-private-rmbs-spread",
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      "https://finwiki.zksc.io/ja/domains/policy-finance/",
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    "external_links_count": 5,
    "external_links": [
      "https://www.jhf.go.jp/about/investor/shisan_tanpo/kihatsu/factor.html",
      "https://www.jhf.go.jp/english/mbs_faq.html",
      "https://www.jhf.go.jp/files/topics/5007_ext_99_1.pdf",
      "https://www.jhf.go.jp/files/topics/5014_ext_99_1.pdf",
      "https://www.jhf.go.jp/files/topics/5876_ext_99_0.pdf"
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