First Trust DJ Select MicroCap ETF (FDM)

First Trust DJ Select MicroCap ETF (FDM) is a passively managed exchange-traded fund that follows the Dow Jones Select MicroCap Index, providing investors with low-cost exposure to a universe of very small publicly traded companies — those typically below the radar of institutional investors and most popular indexes.

What is the Dow Jones Select MicroCap Index?

The Dow Jones Select MicroCap Index is designed to capture smaller publicly traded companies that fall below the universe of more popular indexes like the S&P 500 or the Russell 2000. The term “select” is deliberate: the index does not include every tiny company trading on U.S. exchanges, but rather applies screens for liquidity, trading volume, and listing requirements to focus on firms genuinely accessible to ordinary investors. The result is an index of roughly 700 to 800 securities covering companies with market capitalizations in the micro-cap range — typically between $100 million and $500 million at index inception, though holdings grow and shrink as markets move.

This is territory far removed from the household names. The typical FDM holding operates without analyst coverage, trades with wider bid-ask spreads, and lives outside the indexes that institutional money tracks robotically. For investors seeking exposure to earlier-stage businesses before they graduate to the Russell 2000 or mid-cap space, or for those building a home-country-bias portfolio that weights small-cap opportunity, FDM fills a niche.

How does FDM track the index?

Like all passive exchange-traded funds, FDM aims to replicate the holdings and weights of its underlying index. The fund holds a diversified basket of micro-cap stocks and attempts to minimize tracking error — the drift between the fund’s return and the index’s return. First Trust, the fund’s sponsor, aims to keep costs low so that expense drag does not erode returns; the fund’s expense ratio is modest relative to active management alternatives for the same space.

Because micro-cap stocks are less liquid than larger ones, tracking the exact index composition sometimes requires accepting wider trading spreads and higher implicit costs at the margin. FDM may not own every single holding in the index with perfect weight; managers use optimization techniques to capture the index’s essence without incurring prohibitive trading costs on the smallest, least-liquid names.

What kinds of companies does FDM own?

The micro-cap universe spans every sector — industrials, consumer discretionary, financials, health care, technology, materials, and others. Common holdings include niche manufacturers, regional financial institutions, specialized retailers, small-cap technology companies that are not yet in venture-backed unicorn territory, and locally rooted service businesses. Many have gone public recently through traditional IPOs rather than the SPAC or merger routes more common in the growth-stage world.

What unites them is not sector or strategy but size and liquidity: they are small enough to be overlooked by the index-tracking funds that dominate institutional portfolios, yet large enough and liquid enough to be genuinely tradable by ordinary investors without running into severe slippage.

Costs and how to trade it

FDM trades on the NASDAQ exchange like any stock, with a ticker and a market price that moves intraday. An investor can buy a single share at market prices set by supply and demand; there is no minimum investment. The expense ratio — the annual cost to own the fund — is typically in the range of 0.60–0.70% of assets, meaning that investors pay 60 to 70 cents per $100 held per year to maintain the fund.

The fund is liquid enough for most retail investors, though trading volume is a fraction of that of a mega-cap ETF like SPY. Bid-ask spreads are tighter than those on the underlying micro-cap stocks themselves, but wider than they would be in a Vanguard total-market fund. This matters most to short-term traders; long-term holders can ignore intraday fluctuations.

The real risks

Micro-cap stocks are more volatile than larger ones — the smaller the market cap, the fewer shares outstanding and the more any given trade can move the price. The companies themselves tend to have shorter operating histories, less analyst coverage, and narrower economic moats than more established firms. A micro-cap that looks promising can disappear through bankruptcy, acquisition, or simple stagnation. Because FDM holds a diversified portfolio, no single failure destroys the fund, but the sector’s inherent choppiness means larger drawdowns than one would see in a fund of larger stocks.

Liquidity risk is real but manageable. If you need to sell a large position in FDM quickly, you will move the market price slightly; equally, if the broader market encounters a liquidity crisis, smaller stocks tend to trade with wider spreads, and the fund could trade at a slight discount to its net asset value (NAV) until order flow normalizes.

Who is FDM for, and how to research it

FDM suits investors with:

• A long time horizon and high risk tolerance; micro-cap allocations benefit from patient capital over multiple years.
• A desire to own smaller, less-discovered companies without stock-picking risk; the index approach offers broad diversification.
• A diversified core portfolio; FDM works best as a satellite position, not the entirety of an equity allocation.

To research FDM, start with the fund’s prospectus and fact sheet, available from First Trust’s website, which detail the index composition, fees, and performance. Review the fund’s holdings quarterly to understand which micro-cap sectors and themes the index is capturing at the moment. Compare FDM’s expense ratio and historical tracking error against other micro-cap ETFs (there are relatively few). Finally, examine the broader micro-cap space by looking at returns of the Russell Microcap Index, the S&P Microcap 600, or other small-cap benchmarks to understand how micro-cap stocks have performed relative to larger ones over different market cycles — because owning the smallest of the small is a return bet, and one that works and fails dramatically depending on the market environment.