FBIIX vs. FITLX

Last updated Jun 24, 2026

FBIIX (Fidelity International Bond Index Fund) and FITLX (Fidelity U.S. Sustainability Index Fund) are both mutual funds - FBIIX is a Global Bonds fund tracking the Bloomberg Global Aggregate ex-USD Float Adjusted RIC Diversified Index (Hedged USD), while FITLX is a Large Cap Blend Equities fund tracking the MSCI USA ESG Leaders Index. Both are passively managed. Over the past 5 years, FBIIX returned 0.81%/yr vs 13.51%/yr for FITLX. At a 0.12 correlation, their price movements are largely independent. FBIIX charges 0.06%/yr vs 0.11%/yr for FITLX.

Performance

FBIIX vs. FITLX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity International Bond Index Fund (FBIIX) and Fidelity U.S. Sustainability Index Fund (FITLX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FBIIX achieves a 1.16% return, which is significantly lower than FITLX's 8.80% return.

FBIIX

• 1D: -0.22%
• 1M: 0.88%
• YTD: 1.16%
• 6M: 1.27%
• 1Y: 2.22%
• 3Y*: 4.16%
• 5Y*: 0.81%
• 10Y*: —

FITLX

• 1D: -0.54%
• 1M: -0.09%
• YTD: 8.80%
• 6M: 7.56%
• 1Y: 26.05%
• 3Y*: 21.42%
• 5Y*: 13.51%
• 10Y*: —

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

FBIIX vs. FITLX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
FBIIX Fidelity International Bond Index Fund	1.16%	2.66%	4.64%	7.48%	-10.84%	-1.84%	4.43%	-1.13%
FITLX Fidelity U.S. Sustainability Index Fund	8.80%	18.77%	23.59%	29.04%	-20.28%	31.55%	18.69%	10.81%

Correlation

The correlation between FBIIX and FITLX is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.34
Correlation (3Y) Calculated over the trailing 3-year period	0.21
Correlation (5Y) Calculated over the trailing 5-year period	0.17
Correlation (All Time) Calculated using the full available price history since Oct 10, 2019	0.12

Over the past year, FBIIX and FITLX have become more correlated (0.34) than their long-term average of 0.12, meaning their price movements have been converging.

Return for Risk

FBIIX vs. FITLX — Risk / Return Rank

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

FBIIX

FBIIX Risk / Return Rank: 9
FBIIX Sharpe Ratio Rank: 9
FBIIX Sortino Ratio Rank: 9
FBIIX Omega Ratio Rank: 9
FBIIX Calmar Ratio Rank: 9
FBIIX Martin Ratio Rank: 8

FITLX

FITLX Risk / Return Rank: 53
FITLX Sharpe Ratio Rank: 58
FITLX Sortino Ratio Rank: 54
FITLX Omega Ratio Rank: 54
FITLX Calmar Ratio Rank: 46
FITLX Martin Ratio Rank: 56

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.

FBIIX vs. FITLX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity International Bond Index Fund (FBIIX) and Fidelity U.S. Sustainability Index Fund (FITLX). 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.

	FBIIX	FITLX	Difference
Sharpe ratio: Return per unit of total volatility	0.74	2.07	-1.33
Sortino ratio: Return per unit of downside risk	1.07	2.84	-1.77
Omega ratio: Gain probability vs. loss probability	1.14	1.37	-0.23
Calmar ratio: Return relative to maximum drawdown	0.80	2.48	-1.67
Martin ratio: Return relative to average drawdown	2.18	10.60	-8.42

FBIIX vs. FITLX - Sharpe Ratio Comparison

The current FBIIX Sharpe Ratio is 0.74, which is lower than the FITLX Sharpe Ratio of 2.07. The chart below compares the historical Sharpe Ratios of FBIIX and FITLX, 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

FBIIX vs. FITLX - Drawdown Comparison

The maximum FBIIX drawdown since its inception was -13.79%, smaller than the maximum FITLX drawdown of -34.35%. Use the drawdown chart below to compare losses from any high point for FBIIX and FITLX.

Drawdown Indicators

	FBIIX	FITLX	Difference
Max Drawdown Largest peak-to-trough decline	-13.79%	-34.35%	+20.56%
Max Drawdown (1Y) Largest decline over 1 year	-2.78%	-11.15%	+8.37%
Max Drawdown (3Y) Largest decline over 3 years	-2.78%	-19.99%	+17.21%
Max Drawdown (5Y) Largest decline over 5 years	-13.74%	-26.91%	+13.17%
Current Drawdown Current decline from peak	-0.79%	-1.95%	+1.16%
Average Drawdown Average peak-to-trough decline	-4.10%	-5.05%	+0.95%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.02%	2.60%	-1.58%

Volatility

FBIIX vs. FITLX - Volatility Comparison

The current volatility for Fidelity International Bond Index Fund (FBIIX) is 0.85%, while Fidelity U.S. Sustainability Index Fund (FITLX) has a volatility of 5.00%. This indicates that FBIIX experiences smaller price fluctuations and is considered to be less risky than FITLX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FBIIX	FITLX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.85%	5.00%	-4.15%
Volatility (6M) Calculated over the trailing 6-month period	2.67%	10.67%	-8.00%
Volatility (1Y) Calculated over the trailing 1-year period	3.04%	13.38%	-10.34%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.59%	17.68%	-14.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.42%	19.11%	-15.69%

FBIIX vs. FITLX - Expense Ratio Comparison

FBIIX has a 0.06% expense ratio, which is lower than FITLX's 0.11% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

FBIIX vs. FITLX - Dividend Comparison

FBIIX's dividend yield for the trailing twelve months is around 4.16%, more than FITLX's 1.02% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
FBIIX Fidelity International Bond Index Fund	4.16%	4.09%	3.44%	2.85%	1.02%	0.62%	0.74%	0.17%	0.00%	0.00%
FITLX Fidelity U.S. Sustainability Index Fund	1.02%	1.11%	1.29%	1.12%	1.49%	0.99%	1.01%	1.41%	1.58%	0.76%

Frequently Asked Questions

Can I hold both FBIIX and FITLX in my portfolio?

FBIIX and FITLX have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FBIIX or FITLX?

FITLX has higher volatility (5.00%) compared to FBIIX (0.85%). In terms of maximum drawdown, FBIIX dropped -13.79% vs FITLX's -34.35%.

Which has better risk-adjusted returns?

FITLX currently has the higher Sharpe Ratio (2.07 vs 0.74), 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.