SHM is not a traditional index fund — it's an exchange-traded fund (ETF) that tracks a specific index

SHM (the Invesco S&P SmallCap Materials ETF) tracks the S&P SmallCap 600 Materials Index, which means it holds stocks from a defined list rather than trying to beat the market. The distinction matters: SHM is an ETF, which trades on an exchange like a stock, while many index funds are mutual funds that you buy directly from a fund company. Both follow an index, but they work differently in your account and may have different costs.

If you're comparing SHM to a broad market index fund like one tracking the S&P 500, SHM is much narrower. It focuses only on small-cap companies in the materials sector — companies involved in chemicals, metals, mining, and paper. A true broad-market index fund holds thousands of companies across all sectors and sizes. SHM holds roughly 100 to 150 stocks, all in one industry group.

Key Takeaways

  • SHM is an ETF that tracks a specific index (the S&P SmallCap 600 Materials Index), so it follows a predetermined list of stocks rather than trying to beat the market.
  • ETFs like SHM trade throughout the day on an exchange, while traditional index mutual funds typically price once per day and may have higher minimum investments.
  • SHM is a sector-specific, small-cap fund, so it carries more risk and volatility than a broad-market index fund that spreads across company sizes and industries.
  • You can buy SHM through any brokerage account the same way you'd buy a stock, using a ticker symbol and paying a per-share price.

How SHM differs from a broad index fund

A broad index fund — like one tracking the S&P 500 or the total U.S. stock market — holds hundreds or thousands of companies across every industry and company size. SHM holds only materials companies with smaller market capitalizations. This means SHM will move more dramatically than a broad fund when materials stocks rise or fall, and it won't cushion you with gains from tech, healthcare, or other sectors on a bad day for materials.

The trade-off is potential for higher returns if materials stocks outperform the broader market. But that also means higher losses if they underperform. A broad index fund is designed to move roughly in line with the overall market; SHM is designed to move in line with one narrow slice of it.

ETF structure and how you buy SHM

SHM trades on an exchange (the NYSE Arca) under the ticker symbol SHM, which means you buy it the way you'd buy any stock. You log into a brokerage account, enter the ticker, and place an order. The price changes throughout the trading day as buyers and sellers trade shares. You pay a per-share price plus any commission your broker charges (many brokers charge zero commission now).

A traditional index mutual fund, by contrast, prices once per day after the market closes. You place an order during the day, but you don't know the exact price until the close. Mutual funds often require a minimum investment (sometimes $1,000 or $3,000), while SHM requires only the price of one share, which fluctuates but is typically in the range of $30 to $60 per share depending on market conditions.

Expense ratio and ongoing costs

SHM charges an expense ratio — a yearly fee expressed as a percentage of your investment. This fee is deducted automatically from the fund's returns and is typically very low for index-tracking ETFs, often between 0.35% and 0.65% annually. That means if you hold $10,000 in SHM, you'd pay roughly $35 to $65 per year in fees.

Broad-market index funds often have lower expense ratios (sometimes 0.03% to 0.10%), because they track larger, more established indexes. SHM's slightly higher fee reflects the cost of tracking a narrower index and the operational expenses of running an ETF. Over decades, even small differences in expense ratios compound, so comparing costs matters if you're deciding between similar funds.

Risk and volatility in a sector-specific fund

Because SHM holds only small-cap materials stocks, it's more volatile than a diversified index fund. Materials companies are sensitive to economic cycles — when the economy slows, demand for raw materials drops, and these stocks often fall sharply. When the economy accelerates, materials stocks can surge. A broad index fund smooths out these swings because it holds companies that move differently depending on conditions.

SHM is better suited to investors who have a specific reason to overweight materials (perhaps they believe the sector will outperform, or they want exposure to commodities), or to investors who are using it as one piece of a larger, diversified portfolio. Holding SHM as your entire stock allocation would expose you to concentrated risk.

When SHM might make sense in a portfolio

SHM works as a satellite holding — a smaller position alongside a core of broad index funds. If you believe materials stocks will outperform, or if you want some exposure to the materials sector without picking individual stocks, SHM gives you that in a low-cost, transparent structure. It's also useful if you're rebalancing a portfolio and want to add or reduce materials exposure without buying or selling individual stocks.

SHM does not make sense as your only stock holding, because it concentrates your risk in one sector and company size. It also doesn't make sense if you're trying to build a simple, low-maintenance portfolio — a single broad index fund does that job better and with lower fees.

Comparing SHM to other materials funds

If you want materials sector exposure, you have other options. XLB (the Materials Select Sector SPDR ETF) tracks large-cap materials companies and is larger and more liquid than SHM. XLB holds bigger, more established materials companies, so it's less volatile. XLMM (the Invesco S&P MidCap Materials ETF) focuses on mid-cap materials stocks, sitting between SHM and XLB in terms of company size and risk.

There are also mutual fund versions of materials indexes, though they typically have higher expense ratios and require minimum investments. The choice between SHM, XLB, XLMM, or a mutual fund depends on your account type, the size of your position, and whether you prefer large-cap or small-cap materials exposure.

Frequently Asked Questions

Can I hold SHM in a retirement account like an IRA or 401(k)?

Yes. SHM trades like a stock, so any brokerage that offers self-directed investing within a retirement account will let you buy it. Check whether your plan or IRA provider allows individual ETF purchases — some employer 401(k) plans restrict you to a menu of funds, while IRAs and self-directed 401(k)s typically allow any publicly traded security.

Does SHM pay dividends?

Yes, SHM pays dividends because the underlying materials stocks pay dividends. The fund distributes these dividends to shareholders, usually quarterly. The dividend yield varies depending on the stocks held and market conditions. You can reinvest dividends automatically in most brokerage accounts, or take them as cash.

What happens if I want to sell SHM?

You sell it the same way you bought it — by entering a sell order in your brokerage account. The order executes during trading hours at the current market price. Because SHM is a popular ETF with high trading volume, you should be able to sell quickly without difficulty. You may owe capital gains tax if the price has risen since you bought it.

Is SHM better than picking individual materials stocks?

SHM removes the risk of picking the wrong individual stocks. It holds a basket of small-cap materials companies, so if one underperforms, others may outperform. Individual stock picking requires research and carries the risk of significant loss if your picks fall. SHM is simpler and lower-risk, though it won't outperform the index it tracks.