FKIDX vs. VTSNX

Last updated Jun 3, 2026

FKIDX (Fidelity Diversified International K6 Fund) and VTSNX (Vanguard Total International Stock Index Fund Institutional Shares) are both mutual funds - FKIDX is a Foreign Large Cap Equities fund managed by Fidelity, while VTSNX is a Large Cap Blend Equities fund managed by Vanguard. Over the past 5 years, FKIDX returned 7.59%/yr vs 8.58%/yr for VTSNX. Their correlation of 0.94 suggests significant overlap in exposure. FKIDX charges 0.60%/yr vs 0.08%/yr for VTSNX.

Performance

FKIDX vs. VTSNX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Diversified International K6 Fund (FKIDX) and Vanguard Total International Stock Index Fund Institutional Shares (VTSNX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FKIDX achieves a 10.84% return, which is significantly lower than VTSNX's 14.71% return.

FKIDX

• 1D: -0.30%
• 1M: 3.70%
• YTD: 10.84%
• 6M: 14.26%
• 1Y: 21.75%
• 3Y*: 16.71%
• 5Y*: 7.59%
• 10Y*: —

VTSNX

• 1D: 0.47%
• 1M: 4.52%
• YTD: 14.71%
• 6M: 17.84%
• 1Y: 31.97%
• 3Y*: 19.58%
• 5Y*: 8.58%
• 10Y*: 9.83%

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

FKIDX vs. VTSNX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FKIDX Fidelity Diversified International K6 Fund	10.84%	27.92%	6.58%	17.57%	-23.30%	13.35%	19.41%	29.76%	-15.21%	8.61%
VTSNX Vanguard Total International Stock Index Fund Institutional Shares	14.71%	32.24%	5.38%	15.29%	-15.99%	8.64%	11.27%	21.69%	-14.41%	11.37%

Correlation

The correlation between FKIDX and VTSNX is 0.95 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.94
Correlation (5Y) Calculated over the trailing 5-year period	0.94
Correlation (All Time) Calculated using the full available price history since May 26, 2017	0.94

The correlation between FKIDX and VTSNX has been stable across timeframes, ranging from 0.94 to 0.95 - a consistent structural relationship.

Return for Risk

FKIDX vs. VTSNX — Risk / Return Rank

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

FKIDX

FKIDX Risk / Return Rank: 24
FKIDX Sharpe Ratio Rank: 22
FKIDX Sortino Ratio Rank: 21
FKIDX Omega Ratio Rank: 21
FKIDX Calmar Ratio Rank: 24
FKIDX Martin Ratio Rank: 32

VTSNX

VTSNX Risk / Return Rank: 60
VTSNX Sharpe Ratio Rank: 64
VTSNX Sortino Ratio Rank: 57
VTSNX Omega Ratio Rank: 61
VTSNX Calmar Ratio Rank: 58
VTSNX Martin Ratio Rank: 58

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.

FKIDX vs. VTSNX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Diversified International K6 Fund (FKIDX) and Vanguard Total International Stock Index Fund Institutional Shares (VTSNX). 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.

	FKIDX	VTSNX	Difference
Sharpe ratio Return per unit of total volatility	1.37	2.35	-0.98
Sortino ratio Return per unit of downside risk	1.99	3.19	-1.20
Omega ratio Gain probability vs. loss probability	1.25	1.43	-0.19
Calmar ratio Return relative to maximum drawdown	1.89	2.93	-1.04
Martin ratio Return relative to average drawdown	7.40	11.61	-4.21
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FKIDX vs. VTSNX - Sharpe Ratio Comparison

The current FKIDX Sharpe Ratio is 1.37, which is lower than the VTSNX Sharpe Ratio of 2.35. The chart below compares the historical Sharpe Ratios of FKIDX and VTSNX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	FKIDX	VTSNX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.37	2.35	-0.98
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.45	0.57	-0.13
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.62	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.53	0.42	+0.11

Drawdowns

FKIDX vs. VTSNX - Drawdown Comparison

The maximum FKIDX drawdown since its inception was -35.00%, roughly equal to the maximum VTSNX drawdown of -35.72%. Use the drawdown chart below to compare losses from any high point for FKIDX and VTSNX.

Drawdown Indicators

	FKIDX	VTSNX	Difference
Max Drawdown Largest peak-to-trough decline	-35.00%	-35.72%	+0.72%
Max Drawdown (1Y) Largest decline over 1 year	-12.45%	-11.29%	-1.16%
Max Drawdown (3Y) Largest decline over 3 years	-14.48%	-13.14%	-1.34%
Max Drawdown (5Y) Largest decline over 5 years	-35.00%	-29.55%	-5.45%
Max Drawdown (10Y) Largest decline over 10 years	—	-35.72%	—
Current Drawdown Current decline from peak	-0.56%	0.00%	-0.56%
Average Drawdown Average peak-to-trough decline	-8.20%	-8.10%	-0.10%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.18%	2.85%	+0.33%

Volatility

FKIDX vs. VTSNX - Volatility Comparison

Fidelity Diversified International K6 Fund (FKIDX) has a higher volatility of 6.16% compared to Vanguard Total International Stock Index Fund Institutional Shares (VTSNX) at 4.81%. This indicates that FKIDX's price experiences larger fluctuations and is considered to be riskier than VTSNX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FKIDX	VTSNX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.16%	4.81%	+1.35%
Volatility (6M) Calculated over the trailing 6-month period	14.31%	11.89%	+2.42%
Volatility (1Y) Calculated over the trailing 1-year period	16.99%	14.23%	+2.76%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.12%	15.04%	+2.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.23%	15.93%	+1.30%

FKIDX vs. VTSNX - Expense Ratio Comparison

FKIDX has a 0.60% expense ratio, which is higher than VTSNX's 0.08% expense ratio.

Dividends

FKIDX vs. VTSNX - Dividend Comparison

FKIDX's dividend yield for the trailing twelve months is around 1.99%, less than VTSNX's 2.64% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FKIDX Fidelity Diversified International K6 Fund	1.99%	2.21%	2.22%	1.55%	0.84%	0.97%	0.61%	1.57%	1.38%	0.19%	0.00%	0.00%
VTSNX Vanguard Total International Stock Index Fund Institutional Shares	2.64%	3.17%	3.36%	3.24%	3.08%	3.08%	2.13%	3.16%	3.19%	2.75%	2.95%	2.86%

Frequently Asked Questions

Can I hold both FKIDX and VTSNX in my portfolio?

With a correlation of 0.95, FKIDX and VTSNX 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, FKIDX or VTSNX?

FKIDX has higher volatility (6.16%) compared to VTSNX (4.81%). In terms of maximum drawdown, FKIDX dropped -35.00% vs VTSNX's -35.72%.

Which has better risk-adjusted returns?

VTSNX currently has the higher Sharpe Ratio (2.35 vs 1.37), 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.