iShares MBS ETF

MBB · NASDAQ · Asset Management - Bonds

$91.59

+0.17 · +0.19% today

Market open · updated 12:44:26 PM ET

Oct 28, 2026 −0.26%

High
$91.55 7:40 AM
Low
$91.20 2:25 PM

Against the S&P 500 Price change through Oct 27, 2026

This year

MBB−3.85%

S&P 500+12.87%

1 year

MBB−4.76%

S&P 500+12.32%

3 years

MBB+5.52%

S&P 500+87.41%

5 years

MBB−15.20%

S&P 500+69.55%

Key numbers

Previous close
$91.41
Open
$91.61
Day's range
$91.52 – $91.93
52-week range
$88.58 – $96.97
Volume
1.2 million
Average volume
4.1 million
Market value
$35.7 billion
Beta
1.14moves about as much as the market
50-day average
$91.26
200-day average
$93.81

Analyst price targets and the full financials are in the terminal.

iShares MBS ETF in the news

  • HeadlineMBB: Lackluster MBS Bond ETF, Weak Investment ThesisSeeking Alpha · October 26, 2026 at 6:04 AM ET
  • Congress trade disclosuresSen. John Boozman Discloses 17 Trades, Including Micron and CiscoWiseView Research desk · October 22, 2026
  • CongressJohn Boozman bought $1,001 - $15,000 of MBBSenate filing · disclosed Oct 21, 2026
  • CongressJohn Boozman bought $1,001 - $15,000 of MBBSenate filing · disclosed Jun 16, 2026
  • CongressJohn Boozman sold $1,001 - $15,000 of MBBSenate filing · disclosed Jun 16, 2026
  • CongressJohn Boozman sold $1,001 - $15,000 of MBBSenate filing · disclosed Mar 6, 2026
  • CongressJohn Boozman bought $1,001 - $15,000 of MBBSenate filing · disclosed Feb 15, 2026
  • CongressJohn Boozman bought $1,001 - $15,000 of MBBSenate filing · disclosed Dec 8, 2025

Congress trades in MBB

5 purchases and 3 sales in the latest 8 filings.

MemberTradeAmountTradedDisclosed
John BoozmanSenate · R-ArkansasPurchase$1,001 - $15,000Sep 9, 2026Oct 21, 2026
John BoozmanSenate · R-ArkansasPurchase$1,001 - $15,000May 27, 2026Jun 16, 2026
John BoozmanSenate · R-ArkansasSale$1,001 - $15,000May 13, 2026Jun 16, 2026
John BoozmanSenate · R-ArkansasSale$1,001 - $15,000Feb 6, 2026Mar 6, 2026
John BoozmanSenate · R-ArkansasPurchase$1,001 - $15,000Jan 23, 2026Feb 15, 2026
John BoozmanSenatePurchase$1,001 - $15,000Nov 21, 2025Dec 8, 2025
John BoozmanSenateSale$1,001 - $15,000Sep 16, 2025Oct 10, 2025
John BoozmanSenatePurchase$1,001 - $15,000Aug 1, 2025Sep 12, 2025

Source: Periodic transaction reports filed with the House and the Senate · Members disclose ranges, not exact amounts, and may file weeks after the trade.

About iShares MBS ETF

The iShares MBS ETF, known by its symbol MBB, is structured to mirror the financial performance of a specific index. This index is made up of premium, mortgage-backed pass-through securities that have been either provided or secured by agencies of the United States government.

Sector
Financial Services
Industry
Asset Management - Bonds
Headquarters
San Francisco, California
Listed
Mar 16, 2007

The price refreshes every 15 seconds while the market is open and carries the time it was read. Company figures are updated each evening. Built from WiseView and market data and public filings. For information only, not investment advice.

Follow MBB in the terminal.

Membership details

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