Commodity ETFs: Gold, Oil, and More
Commodity ETFs give investors exposure to physical goods like gold, oil, and agriculture without taking delivery of the underlying asset.
Commodity ETFs: Gold, Oil, and More
A commodity ETF gives you exposure to physical goods — gold, oil, silver, agricultural products — without you ever storing a barrel or a bar. These funds let everyday investors add commodity exposure to a portfolio for diversification, inflation protection, or tactical bets on supply and demand.
Types of Commodity ETFs
| Type | How It Holds Exposure | Examples |
|---|---|---|
| Physically backed | Owns the actual commodity | GLD, SLV, IAU |
| Futures-based | Holds futures contracts | USO, DBO |
| Equity-based | Owns commodity producers | GDX, XLE |
| Exchange-traded commodities | Direct exposure via notes | ETNs |
Physically backed funds work best for precious metals that are easy to store. Futures-based funds handle oil and gas, where storing the physical good is impractical.
Major Commodity ETFs
- GLD (SPDR Gold Shares) — Holds physical gold, the largest gold ETF
- SLV (iShares Silver Trust) — Holds physical silver
- USO (United States Oil Fund) — Tracks WTI crude oil via futures
- DBC (Invesco DB Commodity Index) — Basket of multiple commodities
Why Investors Use Them
- Inflation hedge — Commodities often rise when fiat currency loses value
- Portfolio diversification — Low correlation to stocks and bonds
- Crisis hedge — Gold tends to rally in market stress
- Tactical exposure — Bet on supply shocks (oil), weather (crops), or demand trends
Risks Specific to Commodity ETFs
- Contango — When future prices exceed spot, futures-based ETFs lose money rolling contracts
- No yield — Commodities don't pay dividends; cost to hold can erode returns
- Volatility — Oil can swing 5–10% in a day on supply news
- Storage costs — Physically backed funds deduct insurance and storage
- Tax treatment — Some commodity ETFs are taxed as collectibles (gold) or partnerships
Contango Explained
Futures-based ETFs must roll expiring contracts into future months. If those future contracts are pricier (contango), the roll costs money — a slow drag that can outweigh gains even when the spot price is flat. This is why USO has historically lagged the spot price of oil over time.
Strategy for Beginners
- Start with gold — Easiest to understand, physically backed (GLD, IAU)
- Keep allocation modest — 5–10% of a portfolio is common
- Avoid leveraged commodity ETFs — Volatility decay compounds quickly
- Understand tax — Gold ETFs may be taxed at collectible rates (up to 28% in the US)
The Takeaway
Commodity ETFs open up an asset class once reserved for futures traders. Used thoughtfully, they add diversification and inflation protection. But they come with quirks — contango, tax rules, and no income — that demand more attention than a plain stock ETF. Start with gold, learn the mechanics, and add breadth as your understanding grows.