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IMTG vs SPMB

Invesco Agency MBS ETF

IMTGCCboe

State Street SPDR Portfolio Mortgage Backed Bond ETF

SPMBANYSE Arca

Overlap

No data

Expense ratio

SPMB −0.18pt a year

IMTG0.22%SPMB0.04%

Avg volume · 30D

SPMB 7772.7×the volume

IMTG208SPMB1.62M

IMTG vs SPMB Performance

Jul 31, 2026 – Oct 30, 2026

0.0%IMTG0.0%SPMB

Jul 31, 2026 to Oct 30, 2026. IMTG 0.0%. SPMB 0.0%. Use the arrow keys to read each point.−3%−2%−1%1%Jul 2026Sep 2026Oct 2026
Expense ratio
IMTG 0.22%
SPMB 0.04%, better
Fund size
IMTG $14M
SPMB $7B
1Y total return
IMTG No data
SPMB +0.3%
Yield (12M)
IMTG No data
SPMB 4.23%
Holdings
IMTG 65
SPMB 2779
Avg volume (30D)
IMTG 208 sh
SPMB 1.62M sh, better
NAV per share
IMTG $47.43
SPMB $21.63
52W range

ETF.net Grade

IMTG: Cost 75, Risk 21, Mission not scored, Tradability 2, Holdings 48, Durability 19. SPMB: Cost 94, Risk 34, Mission 64, Tradability 95, Holdings 75, Durability 83.
Pillar letters and Scores for IMTG, SPMB, with each pillar’s weight
PillarIMTGSPMB
Cost30% weightA75A94Higher
Mission25% weightNot scoredB64
Risk15% weightF21D34Higher
Tradability15% weightF2A95Higher
Holdings10% weightC48A75Higher
Durability5% weightF19A83Higher

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 SPMB 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 ›

SPMB ranks 1st 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 14CVABSVirtus Newfleet Securitized Income ETFScore 43
  4. Rank 15CIMTGInvesco Agency MBS ETFScore 42
  5. Rank 16CMTGPWisdomTree Mortgage Plus Bond FundScore 40

Our read on each fund

ETF.net Research

IMTGCInvesco Agency MBS ETF

SPMBAState Street SPDR Portfolio Mortgage Backed Bond ETF

In short

IMTG No data

SPMB The no-frills way to own America's mortgage bonds. SPMB tracks the Bloomberg U.S. MBS Index for four basis points, a fraction of what the typical mortgage-bond ETF charges, and pays income monthly.

Stated mandate

IMTG No data

SPMB The fund seeks to track, before fees and expenses, the price and yield performance of the Bloomberg U.S. MBS Index.

Why people hold it

IMTG No data

  • SPMB Four basis points a year, against a 0.35% median for mortgage-bond ETFs. Cost is where this fund does its loudest talking.
  • Runs the same Bloomberg U.S. MBS Index as iShares' MBB at the same 0.04% fee, and undercuts MBBA, which tracks that index for far more.
  • Roughly 2,700 mortgage bonds in a single line item, inside a multi-billion-dollar fund that trades actively, with distributions paid monthly.
  • Trading since 2009, and one of the strongest implementations in its mortgage-bond peer group.

Worth knowing

IMTG No data

  • SPMB Homeowners refinance when rates fall, so mortgage bonds get paid back early and rally less than Treasuries. That quirk is built into the index, not the fund.
  • Prices move with interest rates and the monthly payout floats with the portfolio. This is a bond fund, not a cash substitute.
  • US mortgages only. No Treasuries, no corporates, no credit spice. A building block for a bond sleeve rather than the whole sleeve.

Full IMTG profile⁠

Full SPMB profile⁠

IMTG vs SPMB 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 SPMB Cost

Overpaying IMTG vs SPMB

$3,709

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

  • IMTG 0.22%

    $4,558

  • SPMB 0.04%

    $849

$10,000
30 years

Cost over time

  • IMTG 0.22%
  • SPMB 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 $4,558SPMB $849

Year by year

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

Expense ratio

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

SPMB 3rd cheapest of 24 funds

IMTG 7th cheapest of 24 funds

IMTG vs SPMB Dividends

Last 12 months to Oct 30, 2026
Yield (12M)
IMTG No data
SPMB 4.23%
Payout (12M)
IMTG No data
SPMB $0.92
Last payment
IMTG $0.21
SPMB $0.07
Ex-dividend
IMTG Oct 19, 2026
SPMB Oct 1, 2026
Paid on
IMTG Oct 23, 2026
SPMB Oct 6, 2026
Frequency
IMTG Monthly
SPMB 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
SPMBMonthly · 45 paymentsAll SPMB payments⁠
One bar per payment. 45 payments from 2023 to 2026 YTD. Feb 1, 2023 $0.06; Mar 1, 2023 $0.06; Apr 3, 2023 $0.06; May 1, 2023 $0.06; Jun 1, 2023 $0.06; Jul 3, 2023 $0.06; Aug 1, 2023 $0.06; Sep 1, 2023 $0.06; Oct 2, 2023 $0.06; Nov 1, 2023 $0.06; Dec 1, 2023 $0.06; Dec 18, 2023 $0.06; Feb 1, 2024 $0.06; Mar 1, 2024 $0.06; Apr 1, 2024 $0.06; May 1, 2024 $0.06; Jun 3, 2024 $0.06; Jul 1, 2024 $0.06; Aug 1, 2024 $0.06; Sep 3, 2024 $0.07; Oct 1, 2024 $0.07; Nov 1, 2024 $0.07; Dec 2, 2024 $0.07; Dec 19, 2024 $0.10; Feb 3, 2025 $0.07; Mar 3, 2025 $0.07; Apr 1, 2025 $0.07; May 1, 2025 $0.07; Jun 2, 2025 $0.07; Jul 1, 2025 $0.07; Aug 1, 2025 $0.07; Sep 2, 2025 $0.07; Oct 1, 2025 $0.07; Nov 3, 2025 $0.07; Dec 1, 2025 $0.07; Dec 18, 2025 $0.14; Feb 2, 2026 $0.07; Mar 2, 2026 $0.07; Apr 1, 2026 $0.07; May 1, 2026 $0.07; Jun 1, 2026 $0.07; Jul 1, 2026 $0.07; Aug 3, 2026 $0.07; Sep 1, 2026 $0.07; Oct 1, 2026 $0.07. Use the arrow keys to read each point.$0$0.2520232026YTD

IMTG vs SPMB Risk

Fall from peak · 5 years

This chart needs five years of history for both funds.

Risk facts

VolatilityStd dev, 3 years
IMTG No dataSPMB 6.5%
Return per unit of riskSharpe ratio, 3 years
IMTG No dataSPMB 0.28
Worst fallMax drawdown, 5 years
IMTG No dataSPMB −17.0%
Market sensitivityBeta, 5 years
IMTG 0.09SPMB 1.15

Popular comparisons

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