IMCG vs VTWG

IMCGAiShares Morningstar Mid-Cap Growth ETF

VTWGBVanguard Russell 2000 Growth ETF

In short

IMCG Growth investing usually means megacaps. IMCG works the middle of the market instead: roughly 300 mid-cap growth names, indexed since 2004, for six basis points a year.

VTWG Vanguard's Russell 2000 Growth tracker holds the index in full, roughly 1,100 small-cap names, for six basis points. Most of the top-rated growth ETFs crowd into mega-caps. This one stays where the small companies are.

Stated mandate

IMCG The Fund seeks to track an index of U.S. mid-capitalization equities with growth characteristics. Its strategy uses representative sampling and generally invests at least 80% of assets in securities from the Underlying Index.

VTWG The fund seeks to track the Russell 2000 Growth Index, which represents small-capitalization U.S. growth stocks. It uses passive full replication.

Why people hold it

• IMCG 0.06% a year, one third of the 0.18% median for its growth-fund peer group. Mid-cap indexing at large-cap-index prices.
• The growth leaderboard is stacked with large-cap funds (VUG, SCHG, SPYG, VONG). IMCG covers the middle instead, holding about 300 mid-cap growth names.
• Sticks close to the Morningstar mid-cap growth index it follows, one of the tighter tracking jobs in its peer group.
• Running since 2004 under the iShares roof, with a multi-billion-dollar asset base behind it.

• VTWG At 0.06% a year, it costs about a third of the typical fund in its growth-ETF peer group, where the median sits near 0.18%.
• Full replication, not sampling: roughly 1,100 stocks held at index weights, so the portfolio is the benchmark rather than a proxy for it.vanguard.com
• Small-cap growth exposure spread across about 1,100 companies, so no single name drives the fund the way it can in mega-cap growth products (VUG, SCHG, SPYG).
• Running since 2010 as the ETF share class of a Vanguard index fund, with a plain passive mandate and quarterly distributions.vanguard.com

Worth knowing

• IMCG Moderately traded rather than heavily traded, so bid-ask spreads can run wider than the megacap growth ETFs sitting beside it in the category.
• This is a size-and-style bet. Mid-cap growth companies tend to move more sharply than the broad market, in both directions.
• Distributions land quarterly, but a growth screen is not built around income.

• VTWG Small caps move harder than mega-caps. The prospectus flags stock market, investment style and small-cap risk as the main things that can bite.vanguard.com
• It trades lightly next to the category's giants, so wider bid-ask spreads are part of the package.
• Vanguard's own VBK covers similar small-cap growth ground on a different index at 0.05%, so the two overlap with different rulebooks.

Full IMCG profile⁠

Full VTWG profile⁠