BTMKX vs. FAOSX
BTMKX (iShares MSCI EAFE International Index Fund) and FAOSX (Fidelity Advisor Overseas Fund Class Z) are both Foreign Large Cap Equities funds. Over the past 5 years, BTMKX returned 9.42%/yr vs 3.89%/yr for FAOSX. Their correlation of 0.90 suggests significant overlap in exposure. BTMKX charges 0.05%/yr vs 1.02%/yr for FAOSX.
Performance
BTMKX vs. FAOSX - Performance Comparison
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Returns By Period
BTMKX
- 1D
- 0.19%
- 1M
- 2.19%
- YTD
- 10.89%
- 6M
- 10.37%
- 1Y
- 24.72%
- 3Y*
- 17.72%
- 5Y*
- 9.42%
- 10Y*
- 10.27%
FAOSX
- 1D
- 0.00%
- 1M
- 0.00%
- YTD
- 0.00%
- 6M
- 0.00%
- 1Y
- -0.55%
- 3Y*
- 8.01%
- 5Y*
- 3.89%
- 10Y*
- —
BTMKX vs. FAOSX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
BTMKX iShares MSCI EAFE International Index Fund | 10.89% | 31.70% | 3.70% | 18.37% | -14.04% | 11.30% | 8.07% | 21.96% | -13.38% | 21.10% |
FAOSX Fidelity Advisor Overseas Fund Class Z | 0.00% | 15.36% | 5.06% | 20.52% | -24.31% | 19.42% | 15.17% | 27.96% | -14.73% | 26.25% |
Correlation
The correlation between BTMKX and FAOSX is 0.55, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.55 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.82 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.88 |
Correlation (All Time) Calculated using the full available price history since Feb 1, 2017 | 0.90 |
Over the past year, the correlation between BTMKX and FAOSX has dropped to 0.55 - well below their long-term average of 0.90, suggesting their price drivers have been diverging.
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Return for Risk
BTMKX vs. FAOSX — Risk / Return Rank
BTMKX
FAOSX
BTMKX vs. FAOSX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares MSCI EAFE International Index Fund (BTMKX) and Fidelity Advisor Overseas Fund Class Z (FAOSX). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| BTMKX | FAOSX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.71 | ||
| Sortino ratioReturn per unit of downside risk | +2.36 | ||
| Omega ratioGain probability vs. loss probability | 1.30 | 1.00 | +0.30 |
| Calmar ratioReturn relative to maximum drawdown | 2.29 | -0.06 | +2.34 |
| Martin ratioReturn relative to average drawdown | 8.54 | -0.09 | +8.64 |
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Drawdowns
BTMKX vs. FAOSX - Drawdown Comparison
The maximum BTMKX drawdown since its inception was -33.92%, smaller than the maximum FAOSX drawdown of -36.24%. Use the drawdown chart below to compare losses from any high point for BTMKX and FAOSX.
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Drawdown Indicators
| BTMKX | FAOSX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -33.92% | -36.24% | +2.32% |
Max Drawdown (1Y)Largest decline over 1 year | -11.30% | -7.26% | -4.04% |
Max Drawdown (3Y)Largest decline over 3 years | -13.66% | -13.96% | +0.30% |
Max Drawdown (5Y)Largest decline over 5 years | -29.23% | -36.24% | +7.01% |
Max Drawdown (10Y)Largest decline over 10 years | -33.92% | — | — |
Current DrawdownCurrent decline from peak | 0.00% | -5.86% | +5.86% |
Average DrawdownAverage peak-to-trough decline | -7.74% | -7.92% | +0.18% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.02% | 4.13% | -1.11% |
Volatility
BTMKX vs. FAOSX - Volatility Comparison
iShares MSCI EAFE International Index Fund (BTMKX) has a higher volatility of 4.81% compared to Fidelity Advisor Overseas Fund Class Z (FAOSX) at 0.00%. This indicates that BTMKX's price experiences larger fluctuations and is considered to be riskier than FAOSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| BTMKX | FAOSX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.81% | 0.00% | +4.81% |
Volatility (6M)Calculated over the trailing 6-month period | 12.90% | 3.63% | +9.27% |
Volatility (1Y)Calculated over the trailing 1-year period | 15.58% | 8.76% | +6.82% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.25% | 16.70% | -0.45% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 16.64% | 16.64% | 0.00% |
BTMKX vs. FAOSX - Expense Ratio Comparison
BTMKX has a 0.05% expense ratio, which is lower than FAOSX's 1.02% expense ratio.
Dividends
BTMKX vs. FAOSX - Dividend Comparison
BTMKX's dividend yield for the trailing twelve months is around 3.38%, less than FAOSX's 8.67% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BTMKX iShares MSCI EAFE International Index Fund | 3.38% | 3.74% | 3.43% | 3.19% | 2.80% | 3.06% | 1.99% | 3.34% | 4.58% | 2.45% | 2.85% | 2.42% |
FAOSX Fidelity Advisor Overseas Fund Class Z | 8.67% | 8.67% | 1.80% | 1.12% | 0.85% | 2.07% | 0.00% | 1.70% | 5.30% | 3.93% | 0.00% | 0.00% |
Frequently Asked Questions
BTMKX and FAOSX have a correlation of 0.55, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BTMKX has higher volatility (4.81%) compared to FAOSX (0.00%). In terms of maximum drawdown, BTMKX dropped -33.92% vs FAOSX's -36.24%.
BTMKX currently has the higher Sharpe Ratio (1.66 vs -0.05), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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