Generated October 3, 2026.
Overview
EEM and IEMG are both iShares ETFs that track emerging markets equity indexes, but they differ significantly in cost, size, and underlying exposure breadth. The gap in their expense ratios—0.72% for EEM versus 0.09% for IEMG—reflects a decade-long shift in the industry toward ultra-low-cost core holdings, with IEMG now dominating in asset base at $164B compared to $31.7B.
How they differ
The defining difference is cost: IEMG's 0.09% expense ratio is nearly eight times cheaper than EEM's 0.72%. That gap compounds over decades and explains much of IEMG's scale advantage; $164B in assets dwarfs EEM's $31.7B. Second, IEMG's broader index methodology includes more small and mid-cap emerging-market stocks, while EEM's index is more concentrated in large-cap names. Beta is nearly identical (1.02 for EEM, 1.01 for IEMG), so systematic market risk is not a meaningful differentiator. EEM is the older fund, with inception in 04/07/2003, while IEMG launched 10/18/2012.
Who each is best for
- EEM: Fits investors with a long track record preference or those grandfathered into older fund relationships who value historical performance data spanning 23 years, though cost drag may offset any informational edge.
- IEMG: Fits cost-conscious investors seeking broad emerging-market exposure through a core holding; the 0.63% annual expense-ratio advantage translates directly to net return over time.
Key risks to know
- Currency risk in emerging markets. Both ETFs hold foreign-denominated securities and are exposed to exchange-rate fluctuations between the US dollar and emerging-market currencies, which can amplify or dampen reported returns independent of equity performance.
- Index overlap may mask concentration. While IEMG's Investable Market Index is broader than EEM's standard index, both track similar geographies and sectors (heavily weighted to financial services, technology, and consumer discretionary in Asia). Holdings overlap may be substantial; verify country and sector concentration if building a multi-emerging-market portfolio.
- Liquidity and volatility in underlying markets. Emerging-market exchanges can experience trading halts, settlement delays, or wide bid-ask spreads during stress, which may delay or widen execution costs on large ETF purchases or sales.
- Distribution sustainability under market stress. IEMG's higher yield (1.60% versus 1.04%) depends on underlying dividends and may contract sharply if emerging-market corporates cut payouts during economic downturns.
Bottom line
If you prioritize minimizing fees and holding a broader emerging-market portfolio, IEMG's 0.09% expense ratio and $164B asset base offer a compelling advantage. If you value a longer historical track record or require specific exposure to the larger-cap segment of emerging markets, EEM remains viable, but the cost gap is material over multi-decade holding periods. Past performance doesn't guarantee future results, and both funds carry currency and emerging-market liquidity risks that warrant monitoring alongside broader geopolitical developments.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.
