VFSNX vs. OAKEX
VFSNX (Vanguard FTSE All-World ex-US Small-Cap Index Fund Institutional Shares) and OAKEX (Oakmark International Small Cap Fund) are both Foreign Small & Mid Cap Equities funds. Over the past 10 years, VFSNX returned 7.96%/yr vs 7.95%/yr for OAKEX. Their correlation of 0.84 suggests significant overlap in exposure. VFSNX charges 0.11%/yr vs 1.34%/yr for OAKEX.
Performance
VFSNX vs. OAKEX - Performance Comparison
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Returns By Period
In the year-to-date period, VFSNX achieves a 7.99% return, which is significantly higher than OAKEX's -1.73% return. Both investments have delivered pretty close results over the past 10 years, with VFSNX having a 7.96% annualized return and OAKEX not far behind at 7.95%.
VFSNX
- 1D
- 0.54%
- 1M
- -1.61%
- 6M
- 4.16%
- YTD
- 7.99%
- 1Y
- 17.96%
- 3Y*
- 15.00%
- 5Y*
- 5.47%
- 10Y*
- 7.96%
OAKEX
- 1D
- 0.94%
- 1M
- -0.32%
- 6M
- -2.71%
- YTD
- -1.73%
- 1Y
- -2.01%
- 3Y*
- 9.77%
- 5Y*
- 4.16%
- 10Y*
- 7.95%
VFSNX vs. OAKEX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VFSNX Vanguard FTSE All-World ex-US Small-Cap Index Fund Institutional Shares | 7.99% | 29.97% | 2.63% | 15.18% | -21.26% | 12.74% | 11.92% | 21.72% | -18.46% | 30.30% |
OAKEX Oakmark International Small Cap Fund | -1.73% | 29.51% | -3.00% | 19.59% | -14.50% | 17.90% | 5.00% | 31.91% | -23.71% | 26.03% |
Correlation
The correlation between VFSNX and OAKEX is 0.77, 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 | 0.77 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.79 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.85 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.83 |
Correlation (All Time) Calculated using the full available price history since Mar 20, 2009 | 0.84 |
The correlation between VFSNX and OAKEX has been stable across timeframes, ranging from 0.77 to 0.85 - a consistent structural relationship.
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Return for Risk
VFSNX vs. OAKEX — Risk / Return Rank
VFSNX
OAKEX
VFSNX vs. OAKEX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard FTSE All-World ex-US Small-Cap Index Fund Institutional Shares (VFSNX) and Oakmark International Small Cap Fund (OAKEX). 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.
| VFSNX | OAKEX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.40 | ||
| Sortino ratioReturn per unit of downside risk | +1.88 | ||
| Omega ratioGain probability vs. loss probability | 1.23 | 0.98 | +0.25 |
| Calmar ratioReturn relative to maximum drawdown | 1.53 | -0.16 | +1.69 |
| Martin ratioReturn relative to average drawdown | 5.37 | -0.45 | +5.82 |
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Drawdowns
VFSNX vs. OAKEX - Drawdown Comparison
The maximum VFSNX drawdown since its inception was -43.65%, smaller than the maximum OAKEX drawdown of -70.12%. Use the drawdown chart below to compare losses from any high point for VFSNX and OAKEX.
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Drawdown Indicators
| VFSNX | OAKEX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -43.65% | -70.12% | +26.47% |
Max Drawdown (1Y)Largest decline over 1 year | -11.47% | -17.18% | +5.71% |
Max Drawdown (3Y)Largest decline over 3 years | -14.70% | -17.18% | +2.48% |
Max Drawdown (5Y)Largest decline over 5 years | -33.75% | -38.40% | +4.65% |
Max Drawdown (10Y)Largest decline over 10 years | -43.65% | -49.61% | +5.96% |
Current DrawdownCurrent decline from peak | -4.43% | -6.79% | +2.36% |
Average DrawdownAverage peak-to-trough decline | -9.45% | -13.47% | +4.02% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.25% | 6.22% | -2.97% |
Volatility
VFSNX vs. OAKEX - Volatility Comparison
Vanguard FTSE All-World ex-US Small-Cap Index Fund Institutional Shares (VFSNX) has a higher volatility of 5.58% compared to Oakmark International Small Cap Fund (OAKEX) at 4.83%. This indicates that VFSNX's price experiences larger fluctuations and is considered to be riskier than OAKEX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VFSNX | OAKEX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.58% | 4.83% | +0.75% |
Volatility (6M)Calculated over the trailing 6-month period | 12.66% | 12.22% | +0.44% |
Volatility (1Y)Calculated over the trailing 1-year period | 14.41% | 15.10% | -0.69% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 15.22% | 17.77% | -2.55% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 15.62% | 18.29% | -2.67% |
VFSNX vs. OAKEX - Expense Ratio Comparison
VFSNX has a 0.11% expense ratio, which is lower than OAKEX's 1.34% expense ratio.
Dividends
VFSNX vs. OAKEX - Dividend Comparison
VFSNX's dividend yield for the trailing twelve months is around 3.21%, less than OAKEX's 5.34% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
OAKEX Oakmark International Small Cap Fund | 5.34% | 5.24% | 6.38% | 1.83% | 1.89% | 0.61% | 1.87% | 0.21% | 8.93% | 3.64% | 3.09% | 5.06% |
VFSNX Vanguard FTSE All-World ex-US Small-Cap Index Fund Institutional Shares | 3.21% | 3.36% | 3.41% | 3.11% | 2.26% | 2.70% | 1.90% | 3.25% | 2.81% | 2.85% | 2.93% | 2.69% |
Frequently Asked Questions
VFSNX and OAKEX have a correlation of 0.77, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VFSNX has higher volatility (5.58%) compared to OAKEX (4.83%). In terms of maximum drawdown, VFSNX dropped -43.65% vs OAKEX's -70.12%.
VFSNX currently has the higher Sharpe Ratio (1.21 vs -0.19), 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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