FUSIX vs. FIONX

Last updated Jun 4, 2026

FUSIX (Strategic Advisers Fidelity International Fund) and FIONX (Fidelity SAI International Index Fund) are both Foreign Large Cap Equities funds from Fidelity. Over the past 5 years, FUSIX returned 8.62%/yr vs 8.83%/yr for FIONX. With a 0.95 correlation, they move nearly in lockstep. FUSIX charges 0.54%/yr vs 0.04%/yr for FIONX.

Performance

FUSIX vs. FIONX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Strategic Advisers Fidelity International Fund (FUSIX) and Fidelity SAI International Index Fund (FIONX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with FUSIX having a 9.66% return and FIONX slightly lower at 9.51%.

FUSIX

• 1D: 0.56%
• 1M: 3.98%
• YTD: 9.66%
• 6M: 12.49%
• 1Y: 21.85%
• 3Y*: 17.68%
• 5Y*: 8.62%
• 10Y*: 9.67%

FIONX

• 1D: 0.42%
• 1M: 4.08%
• YTD: 9.51%
• 6M: 12.10%
• 1Y: 22.45%
• 3Y*: 17.15%
• 5Y*: 8.83%
• 10Y*: —

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

FUSIX vs. FIONX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FUSIX Strategic Advisers Fidelity International Fund	9.66%	31.20%	5.62%	18.15%	-17.74%	12.47%	13.24%	25.60%	-14.52%	27.28%
FIONX Fidelity SAI International Index Fund	9.51%	31.85%	3.64%	18.22%	-14.19%	11.24%	8.17%	22.09%	-13.59%	22.53%

Correlation

The correlation between FUSIX and FIONX is 0.80, 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	0.80
Correlation (3Y) Calculated over the trailing 3-year period	0.88
Correlation (5Y) Calculated over the trailing 5-year period	0.93
Correlation (All Time) Calculated using the full available price history since Jan 4, 2017	0.95

The correlation between FUSIX and FIONX shifts across timeframes, from 0.80 (1 year) to 0.95 (all time), reflecting how their relationship changes across market environments.

Return for Risk

FUSIX vs. FIONX — Risk / Return Rank

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

FUSIX

FUSIX Risk / Return Rank: 36
FUSIX Sharpe Ratio Rank: 33
FUSIX Sortino Ratio Rank: 35
FUSIX Omega Ratio Rank: 33
FUSIX Calmar Ratio Rank: 38
FUSIX Martin Ratio Rank: 40

FIONX

FIONX Risk / Return Rank: 27
FIONX Sharpe Ratio Rank: 26
FIONX Sortino Ratio Rank: 25
FIONX Omega Ratio Rank: 26
FIONX Calmar Ratio Rank: 26
FIONX Martin Ratio Rank: 31

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.

FUSIX vs. FIONX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Strategic Advisers Fidelity International Fund (FUSIX) and Fidelity SAI International Index Fund (FIONX). 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.

	FUSIX	FIONX	Difference
Sharpe ratio: Return per unit of total volatility	1.64	1.47	+0.17
Sortino ratio: Return per unit of downside risk	2.45	2.10	+0.35
Omega ratio: Gain probability vs. loss probability	1.30	1.27	+0.04
Calmar ratio: Return relative to maximum drawdown	2.35	1.91	+0.44
Martin ratio: Return relative to average drawdown	8.60	7.14	+1.46
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FUSIX vs. FIONX - Sharpe Ratio Comparison

The current FUSIX Sharpe Ratio is 1.64, which is comparable to the FIONX Sharpe Ratio of 1.47. The chart below compares the historical Sharpe Ratios of FUSIX and FIONX, 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

	FUSIX	FIONX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.64	1.47	+0.17
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.55	0.55	0.00
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.61	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.26	0.58	-0.32

Drawdowns

FUSIX vs. FIONX - Drawdown Comparison

The maximum FUSIX drawdown since its inception was -64.42%, which is greater than FIONX's maximum drawdown of -33.69%. Use the drawdown chart below to compare losses from any high point for FUSIX and FIONX.

Drawdown Indicators

	FUSIX	FIONX	Difference
Max Drawdown Largest peak-to-trough decline	-64.42%	-33.69%	-30.73%
Max Drawdown (1Y) Largest decline over 1 year	-10.77%	-11.40%	+0.63%
Max Drawdown (3Y) Largest decline over 3 years	-13.81%	-13.62%	-0.19%
Max Drawdown (5Y) Largest decline over 5 years	-31.34%	-29.49%	-1.85%
Max Drawdown (10Y) Largest decline over 10 years	-31.96%	—	—
Current Drawdown Current decline from peak	-0.12%	-0.47%	+0.35%
Average Drawdown Average peak-to-trough decline	-16.05%	-6.37%	-9.68%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.85%	3.03%	-0.18%

Volatility

FUSIX vs. FIONX - Volatility Comparison

Strategic Advisers Fidelity International Fund (FUSIX) has a higher volatility of 5.33% compared to Fidelity SAI International Index Fund (FIONX) at 4.63%. This indicates that FUSIX's price experiences larger fluctuations and is considered to be riskier than FIONX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FUSIX	FIONX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.33%	4.63%	+0.70%
Volatility (6M) Calculated over the trailing 6-month period	12.50%	12.04%	+0.46%
Volatility (1Y) Calculated over the trailing 1-year period	15.42%	14.82%	+0.60%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.31%	16.04%	+0.27%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.25%	16.54%	-0.29%

FUSIX vs. FIONX - Expense Ratio Comparison

FUSIX has a 0.54% expense ratio, which is higher than FIONX's 0.04% expense ratio.

Dividends

FUSIX vs. FIONX - Dividend Comparison

FUSIX's dividend yield for the trailing twelve months is around 4.54%, more than FIONX's 2.99% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FIONX Fidelity SAI International Index Fund	2.99%	3.28%	3.06%	2.18%	3.34%	2.65%	1.91%	3.16%	3.00%	0.52%	0.00%	0.00%
FUSIX Strategic Advisers Fidelity International Fund	4.54%	3.02%	3.40%	2.43%	4.71%	5.83%	1.25%	3.05%	3.78%	2.03%	1.78%	1.46%

Frequently Asked Questions

Can I hold both FUSIX and FIONX in my portfolio?

FUSIX and FIONX have a correlation of 0.80, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FUSIX or FIONX?

FUSIX has higher volatility (5.33%) compared to FIONX (4.63%). In terms of maximum drawdown, FUSIX dropped -64.42% vs FIONX's -33.69%.

Which has better risk-adjusted returns?

FUSIX currently has the higher Sharpe Ratio (1.64 vs 1.47), 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.