The fund tracks the S&P Global Natural Resources Index. It holds large global listed companies across three pillars (agriculture, energy and metals mining) and caps the weight of each pillar so that no single one dominates the whole. Rather than buying the entire index, it replicates it through sampling, selecting representative stocks.

It suits investors who want to add real-asset exposure inside a stock account as a hedge against inflation and the commodity cycle.

It is a passive (index-tracking) ETF managed by State Street.

The fund bundles three sub-indexes (agriculture, energy and metals mining) and places a cap on the weight of each pillar to prevent concentration in the price of any one resource. Selection is based on market capitalization, and it includes not only US companies but also resource companies listed overseas, which provides regional diversification as well.

• Weight caps on the three resource pillars ease concentration in any single commodity
• A high share of companies listed outside the US gives broad regional diversification
• Secures real-asset exposure inside a stock account

Assets under management (AUM) stand at $5.4B, and the total expense ratio is 0.40% per year.

Resource stocks see earnings rise quickly when commodity prices climb and fall quickly when prices drop, so even an index-tracking product tends to show wide swings.

Commodity prices and resource company earnings move together, so returns ride the cycle heavily. The fund has repeatedly held up relatively well when inflation pressure builds and lagged the broader index when worries about slowing demand grow.

Each time the direction of prices and interest rates shifts, the direction of fund flows shifts with it. Money tends to pour into resource ETFs when demand for inflation hedges grows, and flows tend to turn to outflows when a stronger dollar coincides with signs of a global economic slowdown.

Its strength is that it holds the three resource pillars in balance, diversifying commodity exposure. Its weakness is high sensitivity to the economic cycle, which leads to deep drawdowns in downturns.

The closest in character is GUNR, which holds global upstream resource companies, and comparing the resource pillar mix and fee levels side by side will decide the choice. IGF is an infrastructure fund, and FNDF, GSIE, INTF and similar funds are broad overseas equity funds, so their sectors differ and they are hard to treat as true peers. It is appropriate to compare them only in terms of fees and fund size. To narrow the focus within resources, you can also consider XLE for energy, XME or PICK for metals mining, MOO for agriculture, and IGE for US-centered resource stocks.

Here are the points to check before adding this ETF. A resource theme is generally used as a supplementary asset rather than a core holding, so it is best to decide on the weight and holding period first.

The fund is directly tied to commodity prices and the global economy, so volatility is high. When overseas currency exposure is added, returns in Korean won terms can diverge from the underlying index, so it is safer to limit the weight in advance.

Consider it as a supplementary asset to prepare for inflation and the commodity cycle. If you want to hold the resource sector as a whole in one go, this ETF fits, and if you want to focus on a specific resource, XLE, XME, MOO and others are the better match.