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iShares MBS ETF (MBB) ETF Overview

Name: iShares MBS ETF (MBB) price history and fund statistics
Creator: TickerBase
License: https://creativecommons.org/licenses/by/4.0/

Price history, fund statistics and profile — an exchange-traded fund.

Exchange-Traded Funds · Government Mortgage-Backed Bond · DATA UPDATED 2026-08-16

iShares MBS ETF (MBB) is an exchange-traded fund managed by iShares in the "Government Mortgage-Backed Bond" category. It manages roughly $39 billion in assets.

The fund will invest at least 80% of its assets in the component securities of the underlying index and TBAs that have economic characteristics that are substantially identical to the economic characteristics of the component securities of the index, and the fund will invest at least 90% of its assets in fixed income securities of the types included in the underlying index that BFA believes will help the fund track the index.

Interactive chart & fund stats →

MBB Fund Statistics

Expense ratio	0.04%
Trailing yield	4.34%
Assets under management	$39 billion
Fund category	Government Mortgage-Backed Bond
Fund family	iShares
Inception	2007-03-13

The live price chart, fund profile and news are in the interactive MBB viewer.

Other Companies in Government Mortgage-Backed Bond

VMBS · Vanguard Mortgage-Backed Securities Index Fund ETF Shares — $17 billion
SPMB · State Street SPDR Portfolio Mortgage Backed Bond ETF — $7 billion
JMBS · Janus Henderson Mortgage-Backed Securities ETF — $7 billion
SMBS · Schwab Mortgage-Backed Securities ETF — $6 billion

← MBAV All “M” companies MBBC →

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