MBBA: iShares Mortgage-Backed Securities Active ETF

ETF

Fixed Income

iShares Mortgage-Backed Securities Active ETF (MBBA) is a iShares ETF with a 0.25% expense ratio and $740MM in net assets.

Fee

0.25%

expense ratio

Net assets

$740MM

Launched

May 18, 1998

Holdings

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no holdings data

Top 10 weight

—

largest ten holdings

Largest sector

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Yield

30-day SEC 4.46%

as of Oct 22, 2026

Benchmark

—

Performance

Sector breakdown

No sector breakdown for this fund: its holdings are bonds, commodities or other assets without a sector, or we don't have its holdings.

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Data from iShares; prices and returns from market data. Page updated October 29, 2026. Holdings and figures change over time. For information only — not investment advice.