FMDE vs IMCB

FMDECFidelity Enhanced Mid Cap ETF

IMCBAiShares Morningstar Mid-Cap ETF

In short

FMDE A 2007-vintage Fidelity quant strategy that spent 16 years as a mutual fund, then reorganized into an ETF in 2023 at roughly half the old fee. Same multifactor machinery, aimed at the mid-cap tier.

IMCB Mid-cap America for four basis points, running since 2004. It samples Morningstar's US mid-cap index across roughly 400 stocks and hews to that benchmark about as closely as anything in its category.

Stated mandate

FMDE The fund seeks to outperform its benchmark through a quantitative investment process that balances risk and return. It uses multifactor statistical models to select companies with desirable fundamental characteristics.

IMCB The Fund seeks to track an index of mid-capitalization U.S. equities. It uses indexing and representative sampling rather than trying to outperform the index.

Why people hold it

• FMDE The record predates the ticker. This strategy launched as a Fidelity Enhanced Index mutual fund in 2007 and was reorganized into an ETF in November 2023 with identical objective, policies and strategy.fidelity.comsec.gov
• Costs 0.23% a year, under the typical US multifactor equity fund, and the ETF conversion cut the fee roughly in half versus the mutual fund it replaced.fidelity.com
• Most multifactor shelves are stacked with large caps (VONV, VYM, IUSG). This one points valuation, growth and profitability screens at mid caps, holding roughly 300 of the Russell Midcap's ~800 names.sec.gov
• It arrived with the mutual fund's assets intact, now a multi-billion-dollar fund that trades actively, which tends to keep spreads narrow for ordinary retail-size orders.

• IMCB Costs 0.04% a year, against roughly 0.15% typical for the mid-cap group.
• Indexing, not opinions: representative sampling of the Morningstar US Mid Cap Index, with tracking among the tightest in its peer group.ishares.com
• Trading since 2004 and now a multi-billion-dollar fund, so there is a long operating history here, not a launch-year story.
• About 400 names covering both the growth and value sides of US mid caps, so no style tilt is baked in.

Worth knowing

• FMDE Active quant, not index replication. Managers can own names outside the Russell Midcap and tilt weights, so results diverge from the benchmark in both directions.sec.gov
• Mid-cap territory brings its own weather: Fidelity's own disclosures note medium-size issuers can be more volatile than larger ones and can perform unlike the broad market.fidelity.com
• Distributions land quarterly and fall out of a capital-appreciation mandate, not a yield target.sec.gov

• IMCB Thinly traded next to the category's household names, so spreads and order handling matter more at the moment of a trade.
• All US, all stocks: mid caps move harder than mega caps, and nothing else in the portfolio cushions an equity selloff.
• VO and SCHM cover similar ground at 0.03%, so the cost edge here is over the group average rather than over the cheapest rivals.

Full FMDE profile⁠

Full IMCB profile⁠