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Journal / 16 June 2026

Gold ETFs Explained: GLD vs IAU vs GLDM vs SGOL (and GDX/GDXJ) in 2026

6 min read

Gold ETFs Explained: GLD vs IAU vs GLDM vs SGOL (and GDX/GDXJ) in 2026

· Bitgolder Research

A gold ETF is the easiest way to get gold exposure from a brokerage app — but it is not the same thing as owning gold. With bullion at record highs in 2026 (the LBMA PM benchmark sat near $4,075/oz in mid-June, with spot trading roughly $4,200–$4,340), more investors than ever are searching for the cheapest, best-structured gold fund. This guide compares the major physically-backed gold ETFs and gold-miner ETFs on the things that actually matter — expense ratio, size, where the metal is vaulted, tax, and what you really own — then explains where a fund makes sense and where holding the metal yourself wins.

What a gold ETF actually is

The big bullion ETFs (GLD, IAU, GLDM, SGOL and friends) are grantor trusts. The trust buys allocated gold bars, stores them in a vault, and issues shares that each represent a fraction of an ounce. When you buy a share you are buying a claim on the trust — not a specific bar with your name on it, and not metal you can ever ask to be delivered. Only large institutions called Authorised Participants can create or redeem shares, and only in huge baskets (a single GLD basket was worth roughly $38 million in mid-June 2026). For everyone else, the ETF is a price-tracking security that lives inside a brokerage account.

That is genuinely useful for traders and for retirement accounts that can only hold securities. It is liquid, cheap to trade, and tracks the gold price closely. But it comes with trade-offs that the fund's marketing rarely leads with — which is the whole point of comparing them properly.

The major bullion gold ETFs compared (2026)

Every fund below holds physical, allocated gold. The single biggest differentiator is the expense ratio — the annual fee skimmed from the trust, which quietly reduces the amount of gold backing each share over time.

ETFIssuerExpense ratioApprox. AUMLaunched
IAUM — iShares Gold Trust MicroBlackRock0.09%~$7B2021
GLDM — SPDR Gold MiniSharesState Street0.10%~$29B2018
SGOL — abrdn Physical Goldabrdn0.17%~$8B2009
BAR — GraniteShares GoldGraniteShares0.17%~$1.5B2017
IAU — iShares Gold TrustBlackRock0.25%~$70B2005
GLD — SPDR Gold SharesState Street0.40%~$136B2004

The takeaway most "best gold ETF" articles bury: GLD is the most famous and the most expensive. At 0.40% it costs more than four times what IAUM (0.09%) or GLDM (0.10%) charge for the same metal. GLD's deep liquidity matters for options traders and big institutions, but a long-term buy-and-hold investor is paying a heavy premium for a brand name. The "mini" and "micro" funds were created specifically to undercut the flagships, and for a long-term holder they are the obvious choice. Figures come from the issuers' own fact sheets (State Street, BlackRock, abrdn) and move with the gold price, so treat AUM as approximate.

Gold miner ETFs (GDX, GDXJ) are a different animal

A lot of people searching for "best gold ETF" actually land on GDX (VanEck Gold Miners, ~0.51% fee, ~$26B) or GDXJ (VanEck Junior Gold Miners, ~0.52%, ~$9B). These do not hold gold. They hold the shares of mining companies — Newmont, Agnico Eagle, Barrick and the like. That makes them a leveraged bet on the gold price: when gold rises, miners' profit margins expand and the stocks can rise faster than the metal; when gold falls, they fall harder. On top of that you take on ordinary equity risk — management decisions, mining costs, debt, jurisdiction risk and share dilution.

Miners can outperform bullion in a strong gold bull market, but they are a stock-market product with a gold flavour, not a safe-haven hold. If your goal is to own gold, a miner ETF is the wrong tool.

Where the gold actually sits

The bullion funds vault their metal with major banks. GLD's gold is held in London by HSBC and JPMorgan; IAU's is held in London too. SGOL is the interesting one for the privacy-minded: its custodian (JPMorgan) can hold the trust's allocated gold through a Zurich sub-custodian in segregated vaults in Switzerland, audited twice a year — which is why "which gold ETF vaults in Zurich" is a real search. It is still bank-custodied metal you cannot touch, but the jurisdiction differs.

The costs an ETF doesn't put on the label

  • Your gold slowly disappears. The trust sells a sliver of gold every year to pay its expense ratio, so the metal represented by each share declines over time — State Street states this plainly for GLD. Over a decade, that compounds.
  • The collectibles tax. In the US, the IRS treats physically-backed gold ETFs as collectibles under IRC §408(m). Long-term gains are taxed at up to 28%, versus the 20% ceiling on ordinary stocks. Many investors only discover this at tax time. (Miner ETFs like GDX are taxed as normal equities.)
  • No delivery, ever. Retail holders cannot redeem shares for metal. If you want a coin in your hand, an ETF can never give you one.
  • A chain of counterparties. Sponsor → trustee → custodian → sub-custodian → your broker. Each link is a point of failure that physical metal in your own possession simply does not have.

Can you buy gold ETFs on Robinhood?

Yes — GLD, IAU, GLDM and the miners trade on Robinhood like any stock, including fractional shares. What Robinhood (and every broker) cannot sell you is physical bullion. We cover that trap in detail in Can you buy physical gold on Robinhood?

Gold ETF vs physical gold: which wins in 2026?

Gold ETF (GLD/IAU/GLDM)Physical gold (coins & bars)
What you ownA share / claim on a trustThe actual metal, in your possession
Ongoing fee0.09%–0.40% per year, foreverNone after you buy
DeliveryNeverShipped to your door
Counterparty riskSponsor, custodian, brokerNone once in hand
PrivacyHeld in a brokerage accountCan be bought privately with crypto
Best forTrading, IRAs, short-term exposureLong-term wealth you actually hold

For pure short-term price exposure inside a brokerage, a low-fee fund like IAUM or GLDM is fine. But if the reason you want gold is the reason gold has existed for 5,000 years — a hard asset with no counterparty that you control directly — then paper gold defeats the purpose. That is the case we make in physical gold vs ETFs: which makes more money.

Want the real thing instead of a paper claim? Bitgolder ships LBMA-certified gold and silver — priced live to the spot market and paid for in Bitcoin, Monero, Ethereum or a stablecoin. Browse the vault or read how it works.

You can buy gold coins and bars outright, watch the live gold price before you order, and pay in Bitcoin or crypto — with the metal shipped to you, fully insured. No expense ratio, no custodian, no 28% surprise.

Frequently asked questions

What is the cheapest gold ETF in 2026?

IAUM (iShares Gold Trust Micro) is the cheapest at about 0.09%, narrowly ahead of GLDM at 0.10%. Both hold the same physical gold as GLD (0.40%) for a fraction of the fee, which makes them better suited to long-term holding.

Is GLD or IAU better?

IAU is cheaper (0.25% vs GLD's 0.40%) and tracks the same gold price, so for most buy-and-hold investors IAU — or the even cheaper IAUM/GLDM — is the better value. GLD's advantage is its enormous liquidity and options market, which mainly benefits active traders and institutions.

Do gold ETFs hold real gold?

Physically-backed trusts (GLD, IAU, GLDM, SGOL, BAR, IAUM) do hold allocated physical gold in vaults. However, you own a share of the trust, not specific metal, and you cannot take delivery. Gold miner ETFs (GDX, GDXJ) hold mining-company stocks, not gold.

How are gold ETFs taxed?

In the US, physically-backed gold ETFs are taxed as collectibles, with long-term capital gains capped at 28% rather than the 20% that applies to most stocks. Gold miner ETFs are taxed as normal equities.

Can I convert a gold ETF into physical gold?

No. Retail investors cannot redeem ETF shares for metal — redemptions only happen in multi-million-dollar baskets through Authorised Participants. To own physical gold you buy bullion directly from a dealer such as Bitgolder.

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