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

SHM is the ticker symbol for the Invesco S&P SmallCap Health Care ETF. It holds a basket of small-cap health care stocks selected by the S&P SmallCap 600 Health Care Index. Because it tracks an index rather than trying to beat it, SHM behaves like an index fund in one important way: you own many companies at once instead of picking individual stocks. But the fund itself is an ETF, not a traditional index mutual fund, which means it trades on an exchange like a stock and has different costs and tax treatment.

The distinction matters if you are comparing SHM to other ways to invest in health care or small-cap stocks. An index fund and an ETF that track the same index will perform almost identically over time, but they differ in how you buy them, what you pay, and when you can sell.

Key Takeaways

  • SHM tracks the S&P SmallCap 600 Health Care Index, so it holds dozens of small health care companies rather than one or two.
  • Because SHM is an ETF, you buy and sell it during market hours like a stock, whereas a traditional index mutual fund settles at the end of the day.
  • SHM charges an expense ratio (an annual fee expressed as a percentage of what you own), which you can compare to other health care or small-cap funds.
  • If you own SHM in a taxable account, you may owe capital gains tax when you sell, whereas some index mutual funds are structured to minimize those taxes.

How SHM differs from a traditional index mutual fund

Both SHM and a traditional index mutual fund that tracks the same index will own the same stocks in roughly the same proportions. The difference is in how you trade them. SHM trades during market hours — you can buy or sell it any time the stock exchange is open, and the price changes throughout the day. A traditional index mutual fund processes all buy and sell orders once per day, after the market closes, at a single price.

This matters if you need to move money quickly. If the market drops 5 percent in an hour and you own an ETF, you can sell when ready at that lower price. With a mutual fund, you place an order during the day but do not know the price until after the market closes. By then the market may have moved further.

SHM also trades with a bid-ask spread — the difference between what buyers will pay and what sellers are asking. This spread is usually small (a few cents per share) but is a real cost if you buy and sell frequently. A mutual fund has no spread; you buy directly from the fund company at the net asset value.

What SHM costs you

SHM charges an expense ratio, which Invesco publishes in the fund's prospectus. This is an annual percentage fee deducted from the fund's assets — you do not write a check, but it reduces your returns. You can find SHM's current expense ratio on Invesco's website or on financial data sites like Morningstar or Yahoo Finance.

When you buy SHM, you may also pay a commission to your brokerage, depending on whether they charge for ETF trades. Many brokerages now offer commission-free ETF trading, so check your account before you assume there is a cost.

If you sell SHM for more than you paid, you owe capital gains tax on the profit. The tax rate depends on how long you held it: if you owned it for less than one year, the gain is taxed as ordinary income; if you owned it for more than one year, it is taxed at the long-term capital gains rate, which is usually lower. Some index mutual funds are structured to pass fewer capital gains to shareholders, which can matter in a taxable account over many years.

What index SHM actually tracks

SHM follows the S&P SmallCap 600 Health Care Index, which means it holds stocks of small health care companies — not large ones like UnitedHealth or CVS. The index includes health care providers, medical device makers, pharmaceutical companies, and health care support services, but only those with a market capitalization in the small-cap range.

The S&P SmallCap 600 Index itself is maintained by S&P Dow Jones Indices, a division of S&P Global. S&P publishes the rules for which companies belong in the index and rebalances it periodically. Invesco, the fund company, buys the stocks in the index and packages them into SHM so you can own all of them with one purchase.

Because SHM is limited to small-cap health care, it will perform differently from a broader health care index or a broader small-cap index. If small-cap health care stocks outperform the overall market, SHM will too. If they underperform, so will SHM. This is not a flaw — it is the point of owning a focused index fund.

SHM versus other ways to own small-cap health care stocks

If you want exposure to small-cap health care, you have several options. You could buy SHM, which is an ETF. You could buy a traditional index mutual fund that tracks the same S&P SmallCap 600 Health Care Index — Invesco offers one called the Invesco S&P SmallCap Health Care Index Fund. You could buy a different ETF or mutual fund that tracks a different small-cap health care index. Or you could buy individual health care stocks, though that requires research and carries the risk of picking poorly.

The choice between SHM and a comparable mutual fund usually comes down to how you plan to trade. If you want to buy once and hold for years, the differences are small — both will track the index closely, and the expense ratios are usually similar. If you trade frequently or need to move money quickly, an ETF like SHM may suit you better. If you want to minimize capital gains taxes in a taxable account, a mutual fund structured for tax efficiency may be better.

How SHM fits into a broader portfolio

SHM is a narrow holding — it owns only small-cap health care stocks. If you build a portfolio around SHM alone, you are betting that small-cap health care will outperform other sectors and market sizes. Most investors who use SHM combine it with other funds to spread risk across different company sizes, industries, and geographies.

For example, you might own SHM for small-cap health care exposure, a different small-cap fund for non-health care small-cap stocks, a large-cap health care fund for larger health care companies, and international or bond funds for diversification. The goal is to own many different types of investments so that if one underperforms, others may offset the loss.

Frequently Asked Questions

Does SHM pay dividends?

Yes. The health care companies in SHM's index pay dividends, and SHM passes those dividends to shareholders. Invesco distributes dividends periodically — usually quarterly — and you can choose to receive the cash or reinvest it automatically. Check SHM's fact sheet on Invesco's website for the current dividend yield.

Can I buy SHM in a retirement account?

Yes. You can own SHM in an IRA, 401(k), or other retirement account, just as you would own any stock or mutual fund. In a retirement account, you do not owe capital gains tax when you sell, so the tax advantage of a mutual fund over an ETF disappears. The choice between SHM and a comparable mutual fund in a retirement account usually comes down to expense ratio and trading convenience.

What happens if the S&P SmallCap 600 Health Care Index changes?

S&P Dow Jones Indices updates the index periodically, removing companies that no longer meet the criteria and adding new ones. Invesco automatically adjusts SHM's holdings to match the index. You do not have to do anything — the fund handles the rebalancing.

Is SHM a good investment?

Whether SHM is right for you depends on your goals, time horizon, and risk tolerance. SHM tracks an index, so it will match the performance of small-cap health care stocks — neither beating nor lagging them significantly. If you believe small-cap health care stocks will perform well and you want broad exposure to that sector, SHM is a straightforward way to own many companies at once. If you are unsure, consider speaking with a financial advisor about how it fits your overall plan.