Data as of Oct 28, 2026.
IEMG vs VOO: Differences, Returns & Fees
Over the year to Oct 28, 2026, IEMG returned +15.3% to VOO's +13.7%; 0% of their weight is in the same names.
askIQ about this page
askIQ about IEMG and VOO
Net assets: $150.4bn on Oct 27, 2026 for iShares Core MSCI Emerging Markets ETF, and $1.0tn on Sep 30, 2026 for Vanguard S&P 500 ETF.
Pair scorecard
VOO costs 0.06 points a year less; their one-year returns differ by 1.6 points; VOO is 6.2 times larger.
| Measure | IEMG | VOO |
|---|---|---|
| Return | ||
| Total return, 1 year | +15.3% | +13.7% |
| Drawdown | ||
| Below its high | 10.1%, high on Jun 22, 2026 | |
| Benchmark | ||
| What it tracks | MSCI Emerging Markets Investable Market Index (IMI) | S&P 500 Index |
| Cost and size | ||
| Expense ratio | 0.09% | 0.03% |
| Net assets, as of Sep 30, 2026 | $160.1bn | $1.0tn |
| Holdings | ||
| Holdings in common | 0% | |
| Top ten holdings, share of the fund | 32.7% | 39.1% |
Holdings in common uses holdings dated Sep 30, 2026 and Oct 27, 2026. Method
Risk and return
Nov 2, 2012 to Oct 23, 2026 · 729 weekly returnsEach against its own benchmark: IEMG against EEM, Nov 2, 2012 to Oct 23, 2026; VOO against IVV, Sep 17, 2010 to Oct 23, 2026.
VOO returned more: +588.8% to +120.7%. VOO swung less: 15.8% to 18.2%. VOO fell less at its worst: −31.8% to −37.1%.
Full scorecard
19 measures, with how each is measured Open ↓
| Measure | IEMG | VOO | Edge | How it is measured |
|---|---|---|---|---|
| Return | ||||
| Total return | +120.7% | +588.8% | VOO | Price change plus distributions, reinvested. |
| Annualized | +5.8% | +14.8% | VOO | Total return as a yearly rate. |
| Price return | +56.0% | +439.0% | VOO | Price change alone, distributions left out. |
| Risk | ||||
| Volatility | 18.2% | 15.8% | VOO | Spread of weekly returns, annualized. Lower is steadier. |
| Downside deviation | 13.0% | 10.9% | VOO | Like volatility, counting only weeks below the Treasury bill rate. |
| Max drawdown | −37.1% | −31.8% | VOO | Deepest fall from a high to the low after it. |
| Upside capture | 94.6% | 99.8% | Share of its benchmark's rise caught in the weeks it rose. | |
| Downside capture | 97.1% | 99.9% | Share of its benchmark's fall taken in the weeks it fell. Lower is better. | |
| Beta | 0.96 | 1.00 | Not an edge | How far it moves for each 1% its benchmark moves. |
| R squared | 1.00 | 1.00 | Not an edge | Share of its weekly moves its benchmark explains. |
| Risk-adjusted | ||||
| Sharpe | 0.30 | 0.84 | VOO | Return above Treasury bills per unit of volatility. |
| Sortino | 0.42 | 1.21 | VOO | Return above Treasury bills per unit of downside deviation. |
| Treynor | 0.057 | 0.134 | Return above Treasury bills per unit of beta. | |
| Calmar | 0.16 | 0.46 | VOO | Annualized return divided by the max drawdown. |
| Against the benchmark | ||||
| Benchmark | EEM | IVV | The ETF each fund is measured against. | |
| Alpha | +0.7% a year | 0.0% a year | VOO not significant | Yearly return beyond what its beta to the benchmark predicts. |
| Alpha t-stat | 2.17 | 0.51 | Not an edge | How sure the alpha is. Below 2, it could be chance. |
| Alpha range | +0.1% to +1.4% | −0.1% to +0.2% | VOO includes zero | The 95% range for the yearly alpha. |
| Information ratio | 0.38 | 0.02 | Return against its benchmark per unit of tracking error. | |
| Tracking error | 1.4% | 0.4% | Not an edge | How far weekly returns stray from the benchmark, annualized. |
Computed by ETFIQ from Tiingo daily prices and ETFIQ's distribution records, 729 weekly returns. Cash rate: the 13-week Treasury bill.
What they share
By the books each fund has filed, IEMG and VOO hold 0% of their money in the same securities at the same weight. Holdings dated Sep 30, 2026 and Oct 27, 2026.
half
0% in common
Only in one fund ↓
Side by side
IEMG and VOO on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
IEMG and VOO do different jobs. What does each one do in a portfolio?
- What each follows. IEMG follows MSCI Emerging Markets Investable Market Index (IMI) and VOO follows S&P 500 Index.
- Holdings in common. 0% of the weight is in the same securities (holdings dated Oct 27, 2026 and Sep 30, 2026).
- Number of holdings. IEMG holds 2,857 positions and VOO holds 507.
Data as of Oct 28, 2026.
The two-page PDF for this pair is coming. Save the comparison to follow its changes. Free. It needs an email sign-in, once.
IEMG
IEMG tracks the MSCI Emerging Markets. Over the year to Oct 28, 2026 it returned +15.3% with distributions reinvested, against +16.3% for its benchmark, the MSCI Emerging Markets Index. The prospectus expense ratio is 0.09% a year. By its holdings published by its issuer for Oct 27, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 2,857 positions, with the top ten at 32.7%. It sat 10.1% below its high of Jun 22, 2026 on Oct 28, 2026.
VOO
VOO tracks the S&P 500. Over the year to Oct 28, 2026 it returned +13.7% with distributions reinvested, against +13.7% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.03% a year. By its holdings published by its issuer as of Sep 30, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 507 positions, with the top ten at 39.1%.
Questions people ask
- Which returned more over the last year, IEMG or VOO?
- In the year to Oct 28, 2026, with distributions reinvested, IEMG returned +15.3% and VOO +13.7%.
- Which is cheaper, IEMG or VOO?
- VOO is cheaper, by 0.06 percentage points a year. That is about $6 on $10,000 held for a year. Fees come from each fund's prospectus.
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
Cite this pageCitation, APA and Markdown
ETFIQ, IEMG against VOO, data as of Oct 28, 2026. https://etfiq.com/compare/any/iemg-vs-voo
ETFIQ. (Oct 28, 2026). IEMG against VOO. Retrieved from https://etfiq.com/compare/any/iemg-vs-voo
[IEMG against VOO (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/iemg-vs-voo)
Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.