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Data as of Oct 28, 2026.

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GLDM vs MBB: Differences, Returns & Fees

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GLDM is a commodity fund and MBB a bond index fund, and over the year to Oct 28, 2026, GLDM returned +2.8% against −0.8%.

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Net assets: $30.6bn on Oct 27, 2026 for SPDR Gold MiniShares Trust, and $35.5bn on Oct 28, 2026 for iShares MBS ETF.

GLDM on its own →MBB on its own →
At a glance
+2.8%
GLDM total return, 1 year
−0.8%
MBB total return, 1 year
0.10%
GLDM expense ratio
0.04%
MBB expense ratio

Pair scorecard

MBB costs 0.06 points a year less; their one-year returns differ by 3.6 points; MBB is 1.2 times larger.

GLDM vs MBB: Differences, Returns & Fees
MeasureGLDMMBB
Return
Total return, 1 year+2.8%−0.8%
Drawdown
Below its high24.5%, high on Jan 29, 2026
Benchmark
What it tracksGoldBloomberg U.S. MBS Index
Cost and size
Expense ratio0.10%0.04%
Net assets, as of Oct 26, 2026$30.4bn$35.6bn
Holdings
Holdings in commonnot published

Method

Side by side

GLDM SPDR Gold MiniShares Trust MBB iShares MBS ETF
Where it sits Commodity ETF Bond ETF
Issuer State Street iShares
What it is Holds gold Tracks an index of mortgage-backed securities
Total return, 1 year +2.8% −0.8%
Its benchmark over the same days +2.5% (GLD) −1.1% (SPMB)
Gap to its benchmark +0.3 pts vs GLD +0.3 pts vs SPMB
Expense ratio 0.10% 0.04%
Holdings not counted 10813
Net assets, GLDM as of Oct 27, 2026 and MBB as of Oct 28, 2026 $30.6bn $35.5bn

GLDM and MBB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
GLDM

Its expense ratio is 0.10% a year, for the three months to Jun 30, 2026, as its 10-Q states.

GLDM holds gold. Over the year to Oct 28, 2026 it returned +2.8% with distributions reinvested, against +2.5% for its benchmark, the price of gold. It sat 24.5% below its high of Jan 29, 2026 on Oct 28, 2026.

MBB

MBB tracks an index of mortgage-backed securities. Over the year to Oct 28, 2026 it returned −0.8% with distributions reinvested, against −1.1% for its benchmark, the Bloomberg U.S. MBS Index. The prospectus expense ratio is 0.04% a year.

Questions people ask

Which returned more over the last year, GLDM or MBB?
In the year to Oct 28, 2026, with distributions reinvested, GLDM returned +2.8% and MBB −0.8%.
Which is cheaper, GLDM or MBB?
MBB is cheaper, by 0.06 percentage points a year. That is about $6 on $10,000 held for a year. Fees come from each fund's own filings.
Other comparisons
GLDM vs GOVTGLDM vs IEFGLDM vs TLTGLDM vs IUSBIAU vs MBBMBB vs USOMBB vs SLVMBB vs SIVR
Where to next
GLDM on its own →MBB on its own →Hold both: look the portfolio through →Rankings →MBB dividend history →MBB holdings →Standards and sources →
Sources and dates
State Street website ↗
MBB filings on SEC EDGAR ↗
MBB prospectus with the expense ratio (SEC) ↗
iShares page for MBB ↗

Links are sources, not endorsements. A comparison is not a recommendation.

Cite this pageCitation, APA and Markdown

ETFIQ, GLDM against MBB, data as of Oct 28, 2026. https://etfiq.com/compare/any/gldm-vs-mbb

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