iShares MBS ETF (MBB)
NASDAQ: MBBiSharesGovernment Mortgage-Backed BondETFUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
MBB chart
Full chartKey facts
- Expense ratio
- 0.04%
- Assets (AUM)
- $36.25B
- Dividend yield
- 4.51%
- Holdings
- 1
- Inception
- Mar 13, 2007
- Issuer
- iShares
- Index tracked
- —
- Category
- Government Mortgage-Backed Bond
- 52-week range
- 88.58 – 96.97
- Volume / Avg
- 3.82M / 4.26M
- Beta
- —
- Previous close
- 89.73
MBB ETF today
The iShares MBS ETF (MBB) is an exchange-traded fund from iShares in the Government Mortgage-Backed Bond category. It charges an expense ratio of 0.04%, or $4.00 per year on a $10,000 investment, and manages $36.25 billion in assets. Its largest holding is BlackRock Cash Funds Instl SL Agency (BISXX) at 6.49% of assets, and the top 1 positions make up 6.5% of the portfolio out of 1 holdings.
MBB is down 5.7% year to date and has lost 5.4% over the past 12 months; over five years its price has changed -16.8%. The fund's trailing dividend yield is 4.51%. MBB launched on Mar 13, 2007.
Summary generated from market data by MetaCap's automated system. Methodology
MBB top 10 holdings
| # | Holding | Weight |
|---|---|---|
| 1 | BISXXBlackRock Cash Funds Instl SL Agency | 6.49% |
Top 10 holdings: 6.5% of assets.
MBB performance
1 week
+0.64%
1 month
-2.64%
3 months
-4.19%
6 months
-5.45%
Year to date
-5.70%
1 year
-5.40%
3 years
+2.09%
5 years
-16.80%
MBB price return, excluding dividends.
ETFs similar to MBB
MBB news
All MBB newsMBB ETF FAQ
What is the MBB price today?
MBB last traded at $89.79 as of Oct 9, 4:00 PM EDT, up 0.07% on the day.
What is MBB's expense ratio?
MBB has an expense ratio of 0.04%, which works out to about $4.00 per year for every $10,000 invested.
What are MBB's top holdings?
MBB's largest holdings are BlackRock Cash Funds Instl SL Agency (6.49%). The top 10 make up 6.5% of the fund.
Does MBB pay a dividend?
Yes. MBB has a trailing dividend yield of 4.51% and pays monthly distributions; the most recent was $0.366 per share with an ex-dividend date of Oct 1, 2026.
How big is MBB?
MBB has about $36.25 billion in assets under management spread across 1 holdings.