FUAMX vs. VFITX

Last updated Jun 24, 2026

FUAMX (Fidelity Intermediate Treasury Bond Index Fund) and VFITX (Vanguard Intermediate-Term Treasury Fund Investor Shares) are both Government Bonds funds. Over the past 5 years, FUAMX returned -0.55%/yr vs 0.04%/yr for VFITX. With a 0.96 correlation, they move nearly in lockstep. FUAMX charges 0.03%/yr vs 0.20%/yr for VFITX.

Performance

FUAMX vs. VFITX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Intermediate Treasury Bond Index Fund (FUAMX) and Vanguard Intermediate-Term Treasury Fund Investor Shares (VFITX). 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 FUAMX having a -0.78% return and VFITX slightly lower at -0.81%.

FUAMX

• 1D: -0.31%
• 1M: 0.31%
• YTD: -0.78%
• 6M: -0.48%
• 1Y: 2.81%
• 3Y*: 3.16%
• 5Y*: -0.55%
• 10Y*: —

VFITX

• 1D: -0.30%
• 1M: 0.33%
• YTD: -0.81%
• 6M: -0.39%
• 1Y: 2.70%
• 3Y*: 3.51%
• 5Y*: 0.04%
• 10Y*: 1.17%

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

FUAMX vs. VFITX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FUAMX Fidelity Intermediate Treasury Bond Index Fund	-0.78%	8.00%	0.40%	4.07%	-13.06%	-3.19%	8.86%	7.25%	1.25%	-0.35%
VFITX Vanguard Intermediate-Term Treasury Fund Investor Shares	-0.81%	7.54%	1.39%	4.08%	-10.43%	-2.38%	8.20%	6.29%	1.01%	-0.35%

Correlation

The correlation between FUAMX and VFITX is 0.96 - 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	0.96
Correlation (3Y) Calculated over the trailing 3-year period	0.96
Correlation (5Y) Calculated over the trailing 5-year period	0.97
Correlation (All Time) Calculated using the full available price history since Oct 19, 2017	0.96

The correlation between FUAMX and VFITX has been stable across timeframes, ranging from 0.96 to 0.97 - a consistent structural relationship.

Return for Risk

FUAMX vs. VFITX — Risk / Return Rank

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

FUAMX

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

VFITX

VFITX Risk / Return Rank: 10
VFITX Sharpe Ratio Rank: 10
VFITX Sortino Ratio Rank: 10
VFITX Omega Ratio Rank: 9
VFITX Calmar Ratio Rank: 10
VFITX Martin Ratio Rank: 9

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.

FUAMX vs. VFITX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Intermediate Treasury Bond Index Fund (FUAMX) and Vanguard Intermediate-Term Treasury Fund Investor Shares (VFITX). 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.

	FUAMX	VFITX	Difference
Sharpe ratio: Return per unit of total volatility	0.73	0.78	-0.05
Sortino ratio: Return per unit of downside risk	1.12	1.19	-0.07
Omega ratio: Gain probability vs. loss probability	1.13	1.14	-0.01
Calmar ratio: Return relative to maximum drawdown	0.85	0.94	-0.10
Martin ratio: Return relative to average drawdown	2.26	2.49	-0.23

FUAMX vs. VFITX - Sharpe Ratio Comparison

The current FUAMX Sharpe Ratio is 0.73, which is comparable to the VFITX Sharpe Ratio of 0.78. The chart below compares the historical Sharpe Ratios of FUAMX and VFITX, 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

FUAMX vs. VFITX - Drawdown Comparison

The maximum FUAMX drawdown since its inception was -20.25%, which is greater than VFITX's maximum drawdown of -15.58%. Use the drawdown chart below to compare losses from any high point for FUAMX and VFITX.

Drawdown Indicators

	FUAMX	VFITX	Difference
Max Drawdown Largest peak-to-trough decline	-20.25%	-15.58%	-4.67%
Max Drawdown (1Y) Largest decline over 1 year	-3.72%	-3.21%	-0.51%
Max Drawdown (3Y) Largest decline over 3 years	-6.04%	-4.75%	-1.29%
Max Drawdown (5Y) Largest decline over 5 years	-18.27%	-14.98%	-3.29%
Max Drawdown (10Y) Largest decline over 10 years	—	-15.58%	—
Current Drawdown Current decline from peak	-7.18%	-2.49%	-4.69%
Average Drawdown Average peak-to-trough decline	-7.32%	-2.64%	-4.68%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.39%	1.21%	+0.18%

Volatility

FUAMX vs. VFITX - Volatility Comparison

Fidelity Intermediate Treasury Bond Index Fund (FUAMX) and Vanguard Intermediate-Term Treasury Fund Investor Shares (VFITX) have volatilities of 1.31% and 1.26%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FUAMX	VFITX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.31%	1.26%	+0.05%
Volatility (6M) Calculated over the trailing 6-month period	3.20%	2.88%	+0.32%
Volatility (1Y) Calculated over the trailing 1-year period	4.30%	3.88%	+0.42%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	6.63%	5.64%	+0.99%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.84%	4.67%	+1.17%

FUAMX vs. VFITX - Expense Ratio Comparison

FUAMX has a 0.03% expense ratio, which is lower than VFITX's 0.20% 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

FUAMX vs. VFITX - Dividend Comparison

FUAMX's dividend yield for the trailing twelve months is around 3.77%, less than VFITX's 3.94% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FUAMX Fidelity Intermediate Treasury Bond Index Fund	3.77%	3.52%	3.58%	2.19%	1.24%	1.76%	2.90%	2.16%	2.23%	0.49%	0.00%	0.00%
VFITX Vanguard Intermediate-Term Treasury Fund Investor Shares	3.94%	3.90%	4.05%	3.45%	1.97%	0.99%	4.84%	2.30%	2.34%	1.75%	2.77%	2.50%

Frequently Asked Questions

Can I hold both FUAMX and VFITX in my portfolio?

With a correlation of 0.96, FUAMX and VFITX 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, FUAMX or VFITX?

FUAMX has higher volatility (1.31%) compared to VFITX (1.26%). In terms of maximum drawdown, FUAMX dropped -20.25% vs VFITX's -15.58%.

Which has better risk-adjusted returns?

VFITX currently has the higher Sharpe Ratio (0.78 vs 0.73), 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.