MBB
MBB 2-star rating from Upturn Advisory

iShares MBS ETF (MBB)

iShares MBS ETF (MBB) 2-star rating from Upturn Advisory
$95.8
Last Close (24-hour delay)
Profit since last BUY5.91%
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BUY since 142 days
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Upturn Advisory Summary

01/09/2026: MBB (2-star) has a low Upturn Star Rating. Not recommended to BUY.

Upturn Star Rating

Upturn 2 star rating for performance

Below Average Performance

These Stocks/ETFs, based on Upturn Advisory, often underperform the market, warranting careful consideration before investing.

Analysis of Past Performance

Type ETF
Historic Profit 11.28%
Avg. Invested days 63
Today’s Advisory Consider higher Upturn Star rating
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Upturn Advisory Performance Upturn Advisory Performance icon 4.0
ETF Returns Performance Upturn Returns Performance icon 3.0
Upturn Profits based on simulation icon Profits based on simulation
Upturn last close icon Last Close 01/09/2026

Key Highlights

Volume (30-day avg) -
Beta 1.12
52 Weeks Range 87.68 - 94.39
Updated Date 06/29/2025
52 Weeks Range 87.68 - 94.39
Updated Date 06/29/2025

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iShares MBS ETF

iShares MBS ETF(MBB) company logo displayed in Upturn AI summary

ETF Overview

overview logo Overview

The iShares MBS ETF (MBB) is designed to track the performance of the Markit iBoxx USD Liquid Investment Grade MBS Index. It offers investors exposure to investment-grade mortgage-backed securities issued by U.S. government agencies. The ETF's strategy focuses on providing income and diversification through a portfolio of these securities.

Reputation and Reliability logo Reputation and Reliability

iShares, a subsidiary of BlackRock, is one of the largest and most reputable ETF providers globally. BlackRock has a long-standing track record and is known for its robust risk management and operational capabilities.

Leadership icon representing strong management expertise and executive team Management Expertise

BlackRock employs a team of experienced portfolio managers and research analysts with deep expertise in fixed income markets, including mortgage-backed securities.

Investment Objective

Icon representing investment goals and financial objectives Goal

To provide investors with exposure to investment-grade U.S. mortgage-backed securities and generate income.

Investment Approach and Strategy

Strategy: The ETF aims to replicate the performance of the Markit iBoxx USD Liquid Investment Grade MBS Index. This involves holding securities that are constituents of the index.

Composition The ETF primarily holds U.S. agency mortgage-backed securities (MBS), which are backed by the full faith and credit of the U.S. government. These are typically pass-through securities issued by entities like Fannie Mae, Freddie Mac, and Ginnie Mae.

Market Position

Market Share: The ETF iShares MBS ETF has a significant market share within the U.S. Mortgage-Backed Securities ETF sector. (Specific numerical market share data is dynamic and not provided here, but it is a prominent player).

Total Net Assets (AUM): 14500000000

Competitors

Key Competitors logo Key Competitors

  • Vanguard Mortgage-Backed Securities ETF (VMBS)
  • SPDR Bloomberg Barclays MBS ETF (MBAR)

Competitive Landscape

The U.S. Mortgage-Backed Securities ETF market is competitive, with several large providers offering similar products. iShares MBS ETF benefits from BlackRock's extensive distribution network and brand recognition. However, competitors like Vanguard offer compelling low-cost options, and SPDR provides access to different index methodologies. The primary competitive factors include expense ratios, tracking error, and liquidity.

Financial Performance

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Benchmark Comparison: The iShares MBS ETF generally tracks its benchmark index, the Markit iBoxx USD Liquid Investment Grade MBS Index, closely. Performance is typically within a small margin of the index's returns, reflecting the ETF's passive management strategy.

Expense Ratio: 0.15

Liquidity

Average Trading Volume

The ETF exhibits good liquidity, with substantial average daily trading volume facilitating efficient entry and exit for investors.

Bid-Ask Spread

The bid-ask spread for the iShares MBS ETF is typically tight, indicating a low cost for trading and good market depth.

Market Dynamics

Market Environment Factors

The performance of the iShares MBS ETF is significantly influenced by interest rate movements, Federal Reserve monetary policy, and the overall health of the U.S. housing market. Changes in interest rates directly impact bond prices, and economic growth or contraction can affect mortgage prepayment speeds and credit quality.

Growth Trajectory

The ETF's growth trajectory is tied to investor demand for fixed-income exposure and the attractiveness of mortgage-backed securities as an asset class. Its holdings and strategy are generally stable, focused on replicating its benchmark index.

Moat and Competitive Advantages

Competitive Edge

The iShares MBS ETF's competitive edge stems from its issuer's strong reputation and the broad diversification it offers within the investment-grade MBS market. Its passive tracking strategy provides predictable performance relative to its benchmark. Furthermore, its association with BlackRock's extensive research and distribution capabilities enhances its appeal and accessibility to a wide range of investors seeking stable income and capital preservation.

Risk Analysis

Volatility

The ETF exhibits moderate volatility, typical of fixed-income investments. Its price movements are primarily driven by changes in interest rates and market sentiment towards MBS.

Market Risk

The primary market risks for this ETF include interest rate risk (bond prices fall when rates rise), prepayment risk (borrowers refinancing mortgages, affecting expected cash flows), and credit risk (though significantly mitigated by government backing).

Investor Profile

Ideal Investor Profile

The ideal investor for the iShares MBS ETF is one seeking to diversify their fixed-income portfolio with investment-grade mortgage-backed securities, aiming for a steady stream of income and capital preservation.

Market Risk

This ETF is best suited for long-term investors who are looking for a relatively conservative allocation within their fixed-income strategy and are comfortable with the specific risks associated with mortgage-backed securities.

Summary

The iShares MBS ETF (MBB) provides a diversified approach to investment-grade U.S. mortgage-backed securities, aiming to generate income and track its benchmark index. Backed by the reputation of iShares and BlackRock, it offers moderate volatility and is suitable for long-term investors seeking fixed-income exposure. Its primary risks include interest rate and prepayment sensitivities. The ETF competes in a well-established market with strong players offering similar products.

Similar ETFs

Sources and Disclaimers

Data Sources:

  • iShares Official Website (BlackRock)
  • Financial Data Providers (e.g., Morningstar, ETF.com)

Disclaimers:

This information is for educational purposes only and does not constitute investment advice. Past performance is not indicative of future results. Investors should consult with a qualified financial advisor before making investment decisions.

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Information icon for Upturn AI Summarization data freshness disclaimer Summarized information shown could be a few years old and not current.

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About iShares MBS ETF

Exchange NASDAQ
Headquaters -
IPO Launch date -
CEO -
Sector -
Industry -
Full time employees -
Website
Full time employees -
Website

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.