iShares Mortgage-Backed Securities Active ETF (MBBA) holdings
Top holdings
The 10 largest positions make up 71.2% of the fund, as reported on Aug 28, 2026.
Frequently asked questions
What are the top holdings of MBBA?
As of Aug 28, 2026, the largest positions in iShares Mortgage-Backed Securities Active ETF are UMBS TBA 30yr 2% October Delivery 2.000% 01-AUG-2051 (11.5%), UMBS TBA 30yr 5.5% September Delivery 5.500% 01-MAY-2056 (10.5%), UMBS TBA 30yr 2.5% October Delivery 2.500% 01-AUG-2051 (9.8%), FNMA 30yr Pool#MA6053 5.000% 01-May-2056 5.0% 01-MAY-2056 (8.9%), GNMA II TBA 30yr 2% September Delivery 2.000% 01-AUG-2051 (6.8%).
How concentrated is MBBA?
The 10 largest positions make up 71.2% of iShares Mortgage-Backed Securities Active ETF, as reported on Aug 28, 2026.
Fund holdings are reported periodically and are a snapshot of a past date, not a live position list — what the fund holds today may differ. Weights cover only the largest positions shown, not the whole portfolio.
This page is for informational purposes only. Nothing on it is a recommendation, solicitation or offer to buy or sell any security, nor investment, legal or tax advice. Light Horse Securities Inc does not verify third-party data and is not responsible for its accuracy, completeness or timeliness.