VFSNX vs. FZILX

Last updated Jun 23, 2026

VFSNX (Vanguard FTSE All-World ex-US Small-Cap Index Fund Institutional Shares) and FZILX (Fidelity ZERO International Index Fund) are both mutual funds - VFSNX is a Foreign Small & Mid Cap Equities fund managed by Vanguard, while FZILX is a Foreign Large Cap Equities fund tracking the Fidelity Global ex U.S. Index. Over the past 5 years, VFSNX returned 6.40%/yr vs 9.84%/yr for FZILX. Their correlation of 0.94 suggests significant overlap in exposure. VFSNX charges 0.11%/yr vs 0.00%/yr for FZILX.

Performance

VFSNX vs. FZILX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard FTSE All-World ex-US Small-Cap Index Fund Institutional Shares (VFSNX) and Fidelity ZERO International Index Fund (FZILX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VFSNX achieves a 10.43% return, which is significantly lower than FZILX's 16.50% return.

VFSNX

• 1D: 0.42%
• 1M: -0.55%
• YTD: 10.43%
• 6M: 10.96%
• 1Y: 26.42%
• 3Y*: 15.62%
• 5Y*: 6.40%
• 10Y*: 8.19%

FZILX

• 1D: 1.48%
• 1M: 3.37%
• YTD: 16.50%
• 6M: 17.29%
• 1Y: 35.25%
• 3Y*: 19.36%
• 5Y*: 9.84%
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

VFSNX vs. FZILX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
VFSNX Vanguard FTSE All-World ex-US Small-Cap Index Fund Institutional Shares	10.43%	29.97%	2.63%	15.18%	-21.26%	12.74%	11.92%	21.72%	-12.93%
FZILX Fidelity ZERO International Index Fund	16.50%	33.52%	5.32%	16.28%	-15.96%	8.19%	11.06%	21.69%	-9.38%

Correlation

The correlation between VFSNX and FZILX is 0.90, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.90
Correlation (3Y) Calculated over the trailing 3-year period	0.92
Correlation (5Y) Calculated over the trailing 5-year period	0.94
Correlation (All Time) Calculated using the full available price history since Aug 16, 2018	0.94

The correlation between VFSNX and FZILX has been stable across timeframes, ranging from 0.90 to 0.94 - a consistent structural relationship.

Return for Risk

VFSNX vs. FZILX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

VFSNX

VFSNX Risk / Return Rank: 42
VFSNX Sharpe Ratio Rank: 45
VFSNX Sortino Ratio Rank: 42
VFSNX Omega Ratio Rank: 45
VFSNX Calmar Ratio Rank: 38
VFSNX Martin Ratio Rank: 41

FZILX

FZILX Risk / Return Rank: 65
FZILX Sharpe Ratio Rank: 67
FZILX Sortino Ratio Rank: 60
FZILX Omega Ratio Rank: 66
FZILX Calmar Ratio Rank: 69
FZILX Martin Ratio Rank: 63

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

VFSNX vs. FZILX - 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 Fidelity ZERO International Index Fund (FZILX). 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	FZILX	Difference
Sharpe ratio: Return per unit of total volatility	1.82	2.20	-0.38
Sortino ratio: Return per unit of downside risk	2.51	2.97	-0.46
Omega ratio: Gain probability vs. loss probability	1.33	1.41	-0.08
Calmar ratio: Return relative to maximum drawdown	2.22	3.05	-0.83
Martin ratio: Return relative to average drawdown	8.30	11.75	-3.45

VFSNX vs. FZILX - Sharpe Ratio Comparison

The current VFSNX Sharpe Ratio is 1.82, which is comparable to the FZILX Sharpe Ratio of 2.20. The chart below compares the historical Sharpe Ratios of VFSNX and FZILX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

VFSNX vs. FZILX - Drawdown Comparison

The maximum VFSNX drawdown since its inception was -43.65%, which is greater than FZILX's maximum drawdown of -34.37%. Use the drawdown chart below to compare losses from any high point for VFSNX and FZILX.

Drawdown Indicators

	VFSNX	FZILX	Difference
Max Drawdown Largest peak-to-trough decline	-43.65%	-34.37%	-9.28%
Max Drawdown (1Y) Largest decline over 1 year	-11.47%	-11.24%	-0.23%
Max Drawdown (3Y) Largest decline over 3 years	-14.70%	-13.47%	-1.23%
Max Drawdown (5Y) Largest decline over 5 years	-33.75%	-29.87%	-3.88%
Max Drawdown (10Y) Largest decline over 10 years	-43.65%	—	—
Current Drawdown Current decline from peak	-2.27%	0.00%	-2.27%
Average Drawdown Average peak-to-trough decline	-9.47%	-6.66%	-2.81%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.07%	2.91%	+0.16%

Volatility

VFSNX vs. FZILX - Volatility Comparison

The current volatility for Vanguard FTSE All-World ex-US Small-Cap Index Fund Institutional Shares (VFSNX) is 5.45%, while Fidelity ZERO International Index Fund (FZILX) has a volatility of 6.45%. This indicates that VFSNX experiences smaller price fluctuations and is considered to be less risky than FZILX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VFSNX	FZILX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.45%	6.45%	-1.00%
Volatility (6M) Calculated over the trailing 6-month period	12.10%	13.51%	-1.41%
Volatility (1Y) Calculated over the trailing 1-year period	14.04%	15.59%	-1.55%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.15%	15.72%	-0.57%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.79%	17.39%	-1.60%

VFSNX vs. FZILX - Expense Ratio Comparison

VFSNX has a 0.11% expense ratio, which is higher than FZILX's 0.00% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

VFSNX vs. FZILX - Dividend Comparison

VFSNX's dividend yield for the trailing twelve months is around 3.14%, more than FZILX's 2.30% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FZILX Fidelity ZERO International Index Fund	2.30%	2.67%	3.00%	2.98%	2.71%	2.61%	1.64%	2.37%	0.02%	0.00%	0.00%	0.00%
VFSNX Vanguard FTSE All-World ex-US Small-Cap Index Fund Institutional Shares	3.14%	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

Can I hold both VFSNX and FZILX in my portfolio?

With a correlation of 0.90, VFSNX and FZILX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, VFSNX or FZILX?

FZILX has higher volatility (6.45%) compared to VFSNX (5.45%). In terms of maximum drawdown, VFSNX dropped -43.65% vs FZILX's -34.37%.

Which has better risk-adjusted returns?

FZILX currently has the higher Sharpe Ratio (2.20 vs 1.82), 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.