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IMTG vs MBB

Invesco Agency MBS ETF

IMTGCCboe

iShares MBS ETF

MBBANasdaq

Overlap

No data

Expense ratio

MBB −0.18pt a year

IMTG0.22%MBB0.04%

Avg volume · 30D

MBB 20319.8×the volume

IMTG208MBB4.23M

IMTG vs MBB Performance

Jul 31, 2026 – Oct 30, 2026

0.0%IMTG+0.2%MBB

Jul 31, 2026 to Oct 30, 2026. IMTG 0.0%. MBB +0.2%. Use the arrow keys to read each point.−3%−2%−1%1%Jul 2026Sep 2026Oct 2026
Expense ratio
IMTG 0.22%
MBB 0.04%, better
Fund size
IMTG $14M
MBB $35.9B
1Y total return
IMTG No data
MBB +0.6%
Yield (12M)
IMTG No data
MBB 4.42%
Holdings
IMTG 65
MBB 10814
Avg volume (30D)
IMTG 208 sh
MBB 4.23M sh, better
NAV per share
IMTG $47.43
MBB $91.96
52W range

ETF.net Grade

IMTG: Cost 75, Risk 21, Mission not scored, Tradability 2, Holdings 48, Durability 19. MBB: Cost 94, Risk 34, Mission 56, Tradability 89, Holdings 77, Durability 92.
Pillar letters and Scores for IMTG, MBB, with each pillar’s weight
PillarIMTGMBB
Cost30% weightA75A94Higher
Mission25% weightNot scoredB56
Risk15% weightF21D34Higher
Tradability15% weightF2A89Higher
Holdings10% weightC48A77Higher
Durability5% weightF19A92Higher

Rank among Mortgage-Backed Securities funds

How we build Categories ›
Same Category. Both funds are graded against the same funds, so their Grades compare head to head.

Same Category. IMTG and MBB are both graded against the same 24 Mortgage-Backed Securities funds, so their Grades compare head to head.

Mortgage-Backed Securities⁠

Category · 24 funds
See all 24 ›

MBB ranks 2nd and IMTG 15th of 24 funds in the Mortgage-Backed Securities Category.

  1. Rank 1ASPMBState Street SPDR Portfolio Mortgage Backed Bond ETFScore 75
  2. Rank 2AMBBiShares MBS ETFScore 73
  3. Rank 3AVMBSVanguard Mortgage-Backed Securities ETFScore 72
  4. Rank 14CVABSVirtus Newfleet Securitized Income ETFScore 43
  5. Rank 15CIMTGInvesco Agency MBS ETFScore 42
  6. Rank 16CMTGPWisdomTree Mortgage Plus Bond FundScore 40

Our read on each fund

ETF.net Research

IMTGCInvesco Agency MBS ETF

MBBAiShares MBS ETF

In short

IMTG No data

MBB Launched in 2007, MBB is the plain-vanilla way to own U.S. agency mortgage bonds: one of the biggest and busiest funds in a small niche, tracking the Bloomberg U.S. MBS Index for four basis points.

Stated mandate

IMTG No data

MBB The fund seeks to track an index composed of U.S. agency mortgage-backed securities.

Why people hold it

IMTG No data

  • MBB Four basis points to rent the entire agency mortgage market, against a category median near 0.35%. In low-coupon bond land, that gap compounds quietly.
  • Scale is the real feature: one of the largest and most actively traded funds in the mortgage-bond category, which generally shows up as tighter spreads.
  • Pays monthly, and the mandate stays narrow: an index of U.S. agency mortgage-backed securities, nothing exotic bolted on.
  • Among the stronger builds in a thin peer group of mortgage-bond ETFs, on the combination of cost, trading friction and issuer staying power.

Worth knowing

IMTG No data

  • MBB This is one slice of the bond market. Agency mortgage paper only, with no Treasuries or corporates alongside it.
  • Mortgage bonds cut both ways with rates: borrowers refinance when yields fall and sit tight when they rise, so the portfolio's duration shifts underneath you.
  • On price it's a photo finish: SPMB tracks the same index at the same 0.04%, and VMBS runs a basis point cheaper.

Full IMTG profile⁠

Full MBB profile⁠

IMTG vs MBB Holdings

How we measure overlap

Each holding counts at its smaller weight in the two funds, summed over the full Holdings. Sector, country and asset class use the same rule on each fund’s split. Cash, FX and derivative lines stay out of the counts. Two bond funds get no overlap figure.

IMTG vs MBB Cost

Overpaying IMTG vs MBB

$3,709

On $10,000 over 30 years. 7% growth a year before fees, expense ratio only.

  • IMTG 0.22%

    $4,558

  • MBB 0.04%

    $849

$10,000
30 years

Cost over time

  • IMTG 0.22%
  • MBB 0.04%
  • Overpaying
One line per fund, from year 0 to year 30. Use the arrow keys to read each point.$0$1K$2K$3K$4K$5K051015202530IMTG $4,558MBB $849

Year by year

YearIMTGMBBOverpaying
10$401$73$328
20$1,561$288$1,273
30$4,558$849$3,709

Expense ratio

  • 0.22%IMTG
  • 0.04%MBB, cheaper
  • Middle half of Mortgage-Backed Securities funds
  • Median 0.38%

MBB 3rd cheapest of 24 funds

IMTG 7th cheapest of 24 funds

IMTG vs MBB Dividends

Last 12 months to Oct 30, 2026
Yield (12M)
IMTG No data
MBB 4.42%
Payout (12M)
IMTG No data
MBB $4.07
Last payment
IMTG $0.21
MBB $0.37
Ex-dividend
IMTG Oct 19, 2026
MBB Oct 1, 2026
Paid on
IMTG Oct 23, 2026
MBB Oct 6, 2026
Frequency
IMTG Monthly
MBB Monthly

Distribution history

Per share, 2023 to 2026, same scale for both

IMTGMonthly · 7 paymentsAll IMTG payments⁠
One bar per payment. 7 payments from 2023 to 2026 YTD. Apr 20, 2026 $0.21; May 18, 2026 $0.21; Jun 22, 2026 $0.21; Jul 20, 2026 $0.21; Aug 24, 2026 $0.21; Sep 21, 2026 $0.21; Oct 19, 2026 $0.21. Use the arrow keys to read each point.$0$0.2520232026YTD
MBBMonthly · 45 paymentsAll MBB payments⁠
One bar per payment. 45 payments from 2023 to 2026 YTD. Feb 1, 2023 $0.24; Mar 1, 2023 $0.25; Apr 3, 2023 $0.25; May 1, 2023 $0.26; Jun 1, 2023 $0.27; Jul 3, 2023 $0.26; Aug 1, 2023 $0.28; Sep 1, 2023 $0.26; Oct 2, 2023 $0.29; Nov 1, 2023 $0.27; Dec 1, 2023 $0.28; Dec 14, 2023 $0.28; Feb 1, 2024 $0.30; Mar 1, 2024 $0.29; Apr 1, 2024 $0.28; May 1, 2024 $0.28; Jun 3, 2024 $0.30; Jul 1, 2024 $0.31; Aug 1, 2024 $0.31; Sep 3, 2024 $0.32; Oct 1, 2024 $0.31; Nov 1, 2024 $0.31; Dec 2, 2024 $0.31; Dec 18, 2024 $0.29; Feb 3, 2025 $0.34; Mar 3, 2025 $0.32; Apr 1, 2025 $0.33; May 1, 2025 $0.33; Jun 2, 2025 $0.33; Jul 1, 2025 $0.33; Aug 1, 2025 $0.33; Sep 2, 2025 $0.34; Oct 1, 2025 $0.34; Nov 3, 2025 $0.34; Dec 1, 2025 $0.35; Dec 19, 2025 $0.33; Feb 2, 2026 $0.33; Mar 2, 2026 $0.33; Apr 1, 2026 $0.33; May 1, 2026 $0.33; Jun 1, 2026 $0.33; Jul 1, 2026 $0.34; Aug 3, 2026 $0.34; Sep 1, 2026 $0.34; Oct 1, 2026 $0.37. Use the arrow keys to read each point.$0$0.2520232026YTD

IMTG vs MBB Risk

Fall from peak · 5 years

This chart needs five years of history for both funds.

Risk facts

VolatilityStd dev, 3 years
IMTG No dataMBB 6.4%
Return per unit of riskSharpe ratio, 3 years
IMTG No dataMBB 0.30
Worst fallMax drawdown, 5 years
IMTG No dataMBB −16.8%
Market sensitivityBeta, 5 years
IMTG 0.09MBB 1.14

IMTG and MBB in the news

All news⁠

Popular comparisons

  • IMTGCvsSPMBA

    Invesco Agency MBS ETF · State Street SPDR Portfolio Mortgage Backed Bond ETF

    Expense ratio
    0.22% · 0.04%
    Category
    Same Category. Both funds are graded against the same funds, so their Grades compare head to head.

  • MBBAvsSPMBA

    iShares MBS ETF · State Street SPDR Portfolio Mortgage Backed Bond ETF

    Expense ratio
    0.04% · 0.04%
    Category
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  • IMTGCvsVMBSA

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    Expense ratio
    0.22% · 0.03%
    Category
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  • MBBAvsVMBSA

    iShares MBS ETF · Vanguard Mortgage-Backed Securities ETF

    Expense ratio
    0.04% · 0.03%
    Category
    Same Category. Both funds are graded against the same funds, so their Grades compare head to head.

  • IMTGCvsSMBSA

    Invesco Agency MBS ETF · Schwab Mortgage-Backed Securities ETF

    Expense ratio
    0.22% · 0.03%
    Category
    Same Category. Both funds are graded against the same funds, so their Grades compare head to head.

  • MBBAvsSMBSA

    iShares MBS ETF · Schwab Mortgage-Backed Securities ETF

    Expense ratio
    0.04% · 0.03%
    Category
    Same Category. Both funds are graded against the same funds, so their Grades compare head to head.