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NASDAQ:MBB

iShares MBS ETF (MBB) Price, Holdings, & News

iShares MBS ETF logo
$91.29 -0.52 (-0.57%)
Closing price 04:00 PM Eastern
Extended Trading
$91.25 -0.04 (-0.04%)
As of 07:56 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.

About iShares MBS ETF (NASDAQ:MBB)

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Key Stats

Today's Range
$91.27
$91.46
50-Day Range
$91.22
$93.83
52-Week Range
$91.02
$96.96
Volume
5.07 million shs
Average Volume
2.52 million shs
Market Capitalization
$38.25 billion
Assets Under Management
$39.11 billion
Dividend Yield
4.43%
Net Expense Ratio
0.04%
Aggregate Rating
N/A

ETF Overview

iShares MBS ETF (the Fund), formerly iShares Barclays MBS Bond Fund, is an exchange-traded fund (ETF). The Fund seeks investment results, which correspond to the price and yield performance of the Barclays Capital U.S. MBS Index (the Index). The Index measures the performance of investment grade mortgage-backed pass-through securities issued by the Government National Mortgage (GNMA). The Index measures the performance of investment grade mortgage-backed pass-through securities issued by the Government National Mortgage Association (GNMA), Federal National Mortgage Association (FNMA) and Federal Home Loan Mortgage Corporation (FHLMC). The Fund invests in a representative sample of securities included in the Index, which has an investment profile similar to the Index. The investment advisor of the Fund is BlackRock Fund Advisors (BFA).

iShares MBS ETF Expenses

TypeMBBAgency MBS ETFsFixed Income ETFsNASDAQ ETFsAll ETFs
Management Fee0.04%0.21%0.31%0.54%0.53%
Other Expenses0.00%0.07%0.31%0.38%0.54%
Total Expense0.04%0.25%0.41%0.69%0.73%
Fee Waiver0.00%-0.10%-0.35%-0.41%-0.68%
Net Expense0.04%0.21%0.35%0.61%0.60%
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MBB ETF News Headlines

iShares MBS ETF (NASDAQ:MBB) Reaches New 1-Year Low - Here's What Happened
iShares MBS ETF (MBB) stock forecast and price target
The trade I’ve been waiting for since 2011
Ross Givens, Director of Research at Traders Agency, is calling for gold to reach $10,000 an ounce this supercycle - and says that may be conservative. Billionaire Pierre Lassonde has argued for $19,000. Former CIA advisor Jim Rickards targets $27,000 based on a federal revaluation of the gold supply. But the bigger opportunity may not be gold itself. A 'backdoor' gold-linked asset has historically multiplied gold's move by 10x or more - returning 846%, 1,668%, 1,847%, and 1,915% in the last supercycle.tc pixel
MBB SE (MBBDF) Q2 2026 Earnings Call Transcript
See More Headlines

MBB ETF - Frequently Asked Questions

iShares MBS ETF's stock was trading at $95.22 on January 1st, 2026. Since then, MBB shares have decreased by 4.1% and is now trading at $91.29.

Top institutional investors of iShares MBS ETF include Allworth Financial LP (0.72%), NewEdge Advisors LLC (0.23%), Corient Private Wealth LP (0.19%) and Allianz Asset Management GmbH (0.15%).

Shares of MBB stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services.

Based on aggregate information from My MarketBeat watchlists, some other companies that iShares MBS ETF investors own include Meta Platforms (META), Walt Disney (DIS), Intel (INTC), iShares iBoxx $ Investment Grade Corporate Bond ETF (LQD), Mastercard (MA), Cisco Systems (CSCO) and iShares iBoxx $ High Yield Corporate Bond ETF (HYG).

Fund Details

Issuer
iShares
Fund Name
iShares MBS ETF
Tax Classification
Regulated Investment Company
Stock Exchange
NASDAQ
Current Symbol
NASDAQ:MBB
Inception Date
3/13/2007
Fund Manager
James Mauro, Scott Radell

Fund Focus

Asset Class
Fixed Income
Benchmark
Bloomberg U.S. MBS Index
Category
U.S. Government
Focus
Agency MBS
Development Level
Developed Markets
Region
North America
Number of Holdings
11212

Fund Statistics

Assets Under Management
$39.11 billion
Average Daily Volume
$2.69 million
Discount/Premium
0.01%

Administrator, Advisor and Custodian

Administrator
State Street Bank and Trust Company
Advisor
BlackRock Fund Advisors
Custodian
State Street Bank and Trust Company
Distributor
BlackRock Investments, LLC
Transfer Agent
State Street Bank and Trust Company
Trustee
N/A
Lead Market Maker
Jane Street

Options

Optionable
Optionable
Options Volume
107
Put Options
0
Call Options
107
Short Interest
3,314,215 shs

Miscellaneous

Beta
0.27
Creation Unit
100,000
Creation Fee
$300.00
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Top 10 MBB Holdings

  • BLACKROCK CASH CL INST SL AGENCY
    Holding Weight: 6.65%
  • GNMA2 30YR TBA(REG C) - 5.5 2026-08-20
    Holding Weight: 1.07%
  • FHLMC 30YR UMBS SUPER - 2.0 2051-05-01
    Holding Weight: 1.00%
  • UMBS 30YR TBA(REG A) - 5.5 2026-09-14
    Holding Weight: 0.96%
  • UMBS 30YR TBA(REG A) - 5.0 2026-09-14
    Holding Weight: 0.72%
  • GNMA2 30YR TBA(REG C) - 5.0 2026-08-20
    Holding Weight: 0.63%
  • GNMA2 30YR - 5.0 2054-11-20
    Holding Weight: 0.52%
  • GNMA2 30YR - 2.0 2051-10-20
    Holding Weight: 0.51%
  • GNMA2 30YR - 2.0 2051-12-20
    Holding Weight: 0.51%
  • FNMA 30YR UMBS - 2.0 2051-12-01
    Holding Weight: 0.50%

MBB Sector Exposure

MBB Industry Exposure


This page (NASDAQ:MBB) was last updated on 9/18/2026 by MarketBeat.com Staff.
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