iShares Mortgage-Backed Securities Active ETF (MBBA)

Cboe BZX: MBBAExchange-traded fund from BlackRock.

  • Net assets$718.8M
  • Dividend yield4.55%
  • 1-year return-1.53%
  • Holdings1

MBBA ETF price chart

MBBA quote & trading statistics

MBBA performance

Total return · as of October 17, 2026
  • YTD-2.44%
  • 1 year-1.53%
  • 3 years+4.98%/yr
  • 5 years-0.39%/yr
  • 10 years+0.83%/yr
1Y volatility
4.79%
3Y volatility
6.52%
3Y Sharpe ratio
0.00

Returns include reinvested distributions; 3-, 5- and 10-year figures are annualized.

MBBA holdings

iShares Mortgage-Backed Securities Active ETF largest holdings by weight
#SymbolNameWeight
1XTSLABlackRock Cash Funds Treasury SL Agency64.11%

This holding makes up 64.1% of the fund. As of October 17, 2026.

MBBA asset allocation

Bonds
100.0%

About iShares Mortgage-Backed Securities Active ETF

Under normal circumstances, the fund invests at least 80% of its net assets, plus any borrowings for investment purposes, in MBS and derivatives that provide investment exposure to such securities or to one or more market risk factors associated with such securities. Such securities include, but are not limited to, securities issued by GNMA, Fannie Mae and Freddie Mac as well as other U.S. government securities.

MBBA ETF FAQ

How much money is in MBBA?

iShares Mortgage-Backed Securities Active ETF has about $718.8M in net assets.

What are the top holdings of MBBA?

The largest positions in MBBA are BlackRock Cash Funds Treasury SL Agency (64.11%). The fund holds 1 securities in total.

How has MBBA performed?

MBBA returned -1.53% over the past year and -0.39% a year over the past five years, including reinvested distributions.

Does MBBA pay dividends?

MBBA has a dividend yield of 4.55%.

When was MBBA launched?

iShares Mortgage-Backed Securities Active ETF began trading on May 18, 1998.