Go Pro
NASDAQ:MBB

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

iShares MBS ETF logo
$93.20 -0.29 (-0.31%)
As of 08/14/2026 04:00 PM Eastern

About iShares MBS ETF (NASDAQ:MBB)

Advanced

Key Stats

Today's Range
$93.14
$93.51
50-Day Range
$92.72
$94.97
52-Week Range
$92.68
$96.96
Volume
1.77 million shs
Average Volume
2.48 million shs
Market Capitalization
$39.05 billion
Assets Under Management
$39.05 billion
Dividend Yield
4.33%
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%0.32%0.54%0.53%
Other Expenses0.00%0.07%0.31%0.39%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%
Receive MBB Stock News and Ratings via Email

Sign-up to receive the latest news and ratings for iShares MBS ETF and its competitors with MarketBeat's FREE daily newsletter.

SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.

MBB ETF News Headlines

MBB SE (MBBDF) Q2 2026 Earnings Call Transcript
They didn't warn anyone in 1971. This time someone is warning you.
On August 15, 1971, Nixon interrupted prime-time television and ended the gold standard in 15 minutes - no debate, no vote, one executive order. Gold tripled within three years and climbed 20x over the following decade. Trump holds that same executive authority today, and his advisors are openly saying a reversal is on the table. There are two ways this plays out - both move gold in the same direction. A free briefing breaks down exactly what Nixon did, why Trump is positioned to act, and how to move your 401k into gold before any announcement - tax free.tc pixel
See More Headlines

MBB ETF - Frequently Asked Questions

iShares MBS ETF's stock was trading at $95.22 at the beginning of 2026. Since then, MBB shares have decreased by 2.1% and is now trading at $93.20.

Top institutional investors of iShares MBS ETF include Rockland Trust Co. (0.15%), Bangor Savings Bank (0.10%), Northside Capital Management LLC (0.09%) and Ocean Park Asset Management LLC (0.09%).

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
11172

Fund Statistics

Assets Under Management
$39.05 billion
Average Daily Volume
$2.06 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
N/A
Short Interest
2,354,361 shs

Miscellaneous

Beta
0.27
Creation Unit
100,000
Creation Fee
$300.00
10 Best Stocks to Own - Summer 2026 Cover

Enter your email address and we’ll send you MarketBeat’s list of ten stocks set to soar in Summer 2026, despite the threat of tariffs and what's happening in Iran. These ten stocks are incredibly resilient and are likely to thrive in any economic environment.

Get This Free Report

Top 10 MBB Holdings

  • BlackRock Cash Funds Instl SL Agency
    Holding Weight: 7.44%
  • Government National Mortgage Association 5.5%
    Holding Weight: 1.07%
  • Federal Home Loan Mortgage Corp. 2%
    Holding Weight: 1.00%
  • Federal National Mortgage Association 5.5%
    Holding Weight: 0.96%
  • Federal National Mortgage Association 5%
    Holding Weight: 0.72%
  • Government National Mortgage Association 5%
    Holding Weight: 0.63%
  • Government National Mortgage Association 2%
    Holding Weight: 0.52%
  • Government National Mortgage Association 5%
    Holding Weight: 0.52%
  • Government National Mortgage Association 2%
    Holding Weight: 0.51%
  • Federal National Mortgage Association 2%
    Holding Weight: 0.50%

MBB Sector Exposure

MBB Industry Exposure


This page (NASDAQ:MBB) was last updated on 8/16/2026 by MarketBeat.com Staff.
From Our Partners