IMCG vs SPYG

IMCGAiShares Morningstar Mid-Cap Growth ETF

SPYGAState Street SPDR Portfolio S&P 500 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.

SPYG The growth half of the S&P 500 for 0.04% a year, running since 2000. No exotic screen, no reinvention: just the index's fastest-growing names, in the cheapest wrapper tracking that index.

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.

SPYG The fund seeks to track, before fees and expenses, the total return of the S&P 500 Growth Index. It provides exposure to S&P 500 companies selected for strong growth characteristics.

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.

• SPYG Costs 0.04% a year, well under the typical fee in the US growth-ETF group.
• The cheapest way to buy the S&P 500 Growth Index: VOOG follows the same benchmark at 0.07%.
• Has tracked its index tightly, one of the strongest implementations among growth funds we grade.
• Trading since 2000, now a multi-billion-dollar fund that changes hands actively, so spreads stay thin. Pays quarterly.

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.

• SPYG About 150 stocks, not 500. You get the growth slice, which means heavier single-name and sector concentration than the full index.
• The index screens on growth and momentum, so rebalances lean into names that have already run and the ride is bumpier than the broad market.
• Large-cap US only. No small caps, no international, no bonds.

Full IMCG profile⁠

Full SPYG profile⁠