IEMG vs IOO: Holdings Overlap
IEMGiShares Core MSCI Emerging Markets ETF
iShares · 2697 holdings · $156.6B · as of 2026-05-31
iShares · 110 holdings · $9.3B · as of 2026-03-31
Holdings snapshots are 61 days apart (IEMG: 2026-05-31, IOO: 2026-03-31). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are IEMG and IOO?
iShares Core MSCI Emerging Markets ETF (IEMG, by iShares) holds 2697 positions; iShares Global 100 ETF (IOO, by iShares) holds 110. They have 6 holdings in common, and by portfolio weight the two funds are 2.8% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 2.8%Sum of the smaller weight of each shared holding
- Shared Holdings
- 6IEMG holds 2697 · IOO holds 110
- Weight in Shared Holdings
- IEMG 9%·IOO 3%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in IEMG
2691 of 2697 positions (90.5% of the fund) are not held by IOO. Showing the top 30 by weight.
Sector Breakdown
| Sector | IEMG | IOO |
|---|---|---|
| Information Technology | 36.2% | 42.3% |
| Financials | 11.0% | 10.0% |
| Communication Services | 4.6% | 10.1% |
| Health Care | 0.9% | 9.8% |
| Consumer Discretionary | 6.0% | 8.5% |
| Other Sectors | 10.4% | 19.0% |
| Unclassified | 30.7% | 0.0% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts. “Unclassified” is weight we could not classify (31% of IEMG, 0% of IOO).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IEMG | +0.3% | +19.9% | +33.4% | +20.1% | +7.8% | +9.0% | 2.25% |
| IOO | +5.6% | +16.0% | +31.2% | +25.4% | +16.4% | +16.6% | 0.80% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in IEMG vs IOO →
Shared Holdings(6)
The top 6 shared positions account for 100% of the overlap, led by 005930, 700 and HONG KONG DOLLAR.
Frequently Asked Questions
How much do IEMG and IOO overlap?
IEMG and IOO overlap by 2.8% of portfolio weight. They share 6 holdings (IEMG holds 2697 positions and IOO holds 110), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IEMG and IOO?
The two portfolios are 2.8% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of IEMG and IOO?
The largest positions held by both funds are 005930, 700, HONG KONG DOLLAR, KOREAN WON and Euro. Together the top 6 shared positions account for 100% of the total overlap.
What does IEMG own that IOO doesn't?
2691 positions (90.5% of IEMG) are unique to IEMG, led by TSMWF, 000660 and 9988. In the other direction, 104 positions (96.9% of IOO) are unique to IOO.