{
 "url": "https://etfiq.com/funds/mbba/holdings/",
 "section": "funds",
 "title": "MBBA Holdings: 695 Positions (Oct 13, 2026) | ETFIQ",
 "description": "MBBA holds 695 positions as of Oct 13, 2026. The largest is Umbs 30YR Tba(reg A) at 12.57%. Download the full list as a CSV.",
 "as_of": "Oct 13, 2026",
 "ticker": "MBBA",
 "fund": "iShares Mortgage-Backed Securities Active ETF",
 "fund_page": "https://etfiq.com/funds/mbba",
 "positions": 695,
 "positions_listed_on_page": 100,
 "lead": "MBBA held 695 positions as of Oct 13, 2026. Umbs 30YR Tba(reg A) is the largest at 12.57%.",
 "source": {
  "name": "iShares (BlackRock)",
  "url": "https://www.ishares.com/us/products/347352/x/latest-holdings.csv",
  "document": "the issuer’s own daily file",
  "book_date": "2026-10-13",
  "file_date": null
 },
 "top_positions": [
  {
   "rank": 1,
   "holding": "Umbs 30YR Tba(reg A)",
   "ticker": null,
   "weight_pct": 12.57,
   "page": null
  },
  {
   "rank": 2,
   "holding": "Umbs 30YR Tba(reg A)",
   "ticker": null,
   "weight_pct": 6.16,
   "page": null
  },
  {
   "rank": 3,
   "holding": "Fhlmc 30YR Umbs Super",
   "ticker": null,
   "weight_pct": 4.97,
   "page": null
  },
  {
   "rank": 4,
   "holding": "GNMA2 30YR Tba(reg C)",
   "ticker": null,
   "weight_pct": 4.81,
   "page": null
  },
  {
   "rank": 5,
   "holding": "Fnma 30YR Umbs",
   "ticker": null,
   "weight_pct": 4.7,
   "page": null
  },
  {
   "rank": 6,
   "holding": "Umbs 15YR Tba(reg B)",
   "ticker": null,
   "weight_pct": 4.23,
   "page": null
  },
  {
   "rank": 7,
   "holding": "Umbs 30YR Tba(reg A)",
   "ticker": null,
   "weight_pct": 3.59,
   "page": null
  },
  {
   "rank": 8,
   "holding": "GNMA2 30YR Tba(reg C)",
   "ticker": null,
   "weight_pct": 2.99,
   "page": null
  },
  {
   "rank": 9,
   "holding": "Fnma 30YR Umbs Super",
   "ticker": null,
   "weight_pct": 2.86,
   "page": null
  },
  {
   "rank": 10,
   "holding": "Fnma 30YR Umbs",
   "ticker": null,
   "weight_pct": 2.82,
   "page": null
  },
  {
   "rank": 11,
   "holding": "GNMA2 30YR Tba(reg C)",
   "ticker": null,
   "weight_pct": 2.63,
   "page": null
  },
  {
   "rank": 12,
   "holding": "FHSTR_436 AB",
   "ticker": null,
   "weight_pct": 2.61,
   "page": null
  },
  {
   "rank": 13,
   "holding": "Umbs 30YR Tba(reg A)",
   "ticker": null,
   "weight_pct": 2.4,
   "page": null
  },
  {
   "rank": 14,
   "holding": "Umbs 30YR Tba(reg A)",
   "ticker": null,
   "weight_pct": 2.37,
   "page": null
  },
  {
   "rank": 15,
   "holding": "GNMA2 30YR",
   "ticker": null,
   "weight_pct": 2.09,
   "page": null
  },
  {
   "rank": 16,
   "holding": "Fhlmc 30YR Umbs",
   "ticker": null,
   "weight_pct": 1.93,
   "page": null
  },
  {
   "rank": 17,
   "holding": "GNMA2 30YR Tba(reg C)",
   "ticker": null,
   "weight_pct": 1.92,
   "page": null
  },
  {
   "rank": 18,
   "holding": "GNMA2 30YR Tba(reg C)",
   "ticker": null,
   "weight_pct": 1.88,
   "page": null
  },
  {
   "rank": 19,
   "holding": "Fnma 30YR Umbs",
   "ticker": null,
   "weight_pct": 1.86,
   "page": null
  },
  {
   "rank": 20,
   "holding": "Fhlmc 30YR Umbs Super",
   "ticker": null,
   "weight_pct": 1.86,
   "page": null
  },
  {
   "rank": 21,
   "holding": "Fnma 30YR Umbs",
   "ticker": null,
   "weight_pct": 1.81,
   "page": null
  },
  {
   "rank": 22,
   "holding": "Fnma 30YR Umbs Super",
   "ticker": null,
   "weight_pct": 1.67,
   "page": null
  },
  {
   "rank": 23,
   "holding": "Fnma 30YR Umbs Super",
   "ticker": null,
   "weight_pct": 1.61,
   "page": null
  },
  {
   "rank": 24,
   "holding": "Fhlmc 30YR Umbs Super",
   "ticker": null,
   "weight_pct": 1.6,
   "page": null
  },
  {
   "rank": 25,
   "holding": "GNMA_22-208D Pa",
   "ticker": null,
   "weight_pct": 1.48,
   "page": null
  }
 ],
 "top_positions_shown": 25,
 "cash": [
  {
   "holding": "BLK Csh Fnd Treasury Sl Agency",
   "weight_pct": 12.98
  },
  {
   "holding": "Cash Collateral Usd Ubfut",
   "weight_pct": 0.36
  },
  {
   "holding": "Cash Collateral Usd Jpm",
   "weight_pct": 0.05
  },
  {
   "holding": "Cash Collateral Usd Xms",
   "weight_pct": 0.02
  },
  {
   "holding": "Cash Collateral Usd Hrnb",
   "weight_pct": -0.04
  },
  {
   "holding": "USD Cash",
   "weight_pct": -50.94
  },
  {
   "holding": "Cash and other net assets",
   "weight_pct": 0.12
  }
 ],
 "weights": "share of net assets, as the source states them",
 "csv": "https://etfiq.com/funds/mbba/holdings/mbba-holdings.csv",
 "json_book": "https://etfiq.com/data/books/mbba.json",
 "markdown": "https://etfiq.com/funds/mbba/holdings/index.md",
 "publisher": {
  "@id": "https://etfiq.com/#org",
  "name": "ETFIQ",
  "url": "https://etfiq.com"
 },
 "license": "https://etfiq.com/license/",
 "license_text": "Figures ETFIQ computes are free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms.",
 "citation": "ETFIQ, Holdings of MBBA, data as of Oct 13, 2026. https://etfiq.com/funds/mbba/holdings/"
}