VUSUX vs. FUAMX

Last updated Aug 5, 2026

VUSUX (Vanguard Long-Term Treasury Fund Admiral Shares) and FUAMX (Fidelity Intermediate Treasury Bond Index Fund) are both Government Bonds funds. Over the past 5 years, VUSUX returned -7.22%/yr vs -1.08%/yr for FUAMX. Their correlation of 0.89 means they have usually moved in the same direction. VUSUX charges 0.10%/yr vs 0.03%/yr for FUAMX.

Performance

VUSUX vs. FUAMX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Long-Term Treasury Fund Admiral Shares (VUSUX) and Fidelity Intermediate Treasury Bond Index Fund (FUAMX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VUSUX achieves a -3.34% return, which is significantly lower than FUAMX's -1.20% return.

VUSUX

• 1D: 0.40%
• 1M: -3.33%
• 6M: -2.97%
• YTD: -3.34%
• 1Y: -1.80%
• 3Y*: -0.01%
• 5Y*: -7.22%
• 10Y*: -1.70%
• ALL TIME*: 3.62%

FUAMX

• 1D: 0.21%
• 1M: -1.14%
• 6M: -0.99%
• YTD: -1.20%
• 1Y: 0.66%
• 3Y*: 3.35%
• 5Y*: -1.08%
• 10Y*: —
• ALL TIME*: 1.15%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
FUAMX Fidelity Intermediate Treasury Bond Index Fund	$0.00	$0.00	$0.00
VUSUX Vanguard Long-Term Treasury Fund Admiral Shares	$0.00	$0.00	$0.00

VUSUX vs. FUAMX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VUSUX Vanguard Long-Term Treasury Fund Admiral Shares	-3.34%	5.66%	-6.30%	3.43%	-29.51%	-4.71%	18.10%	14.26%	-1.80%	2.10%
FUAMX Fidelity Intermediate Treasury Bond Index Fund	-1.20%	8.00%	0.40%	4.07%	-13.06%	-3.19%	8.86%	7.25%	1.25%	-0.35%

Correlation

The correlation between VUSUX and FUAMX is 0.86, meaning they have usually moved in the same direction, including during past declines.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.86
Correlation (3Y) Balances recent behavior with more history.	0.90
Correlation (5Y) Shows whether the relationship held over a longer period.	0.89
Correlation (All Time) Calculated using the full available price history since Oct 19, 2017	0.89

The correlation between VUSUX and FUAMX has been stable across timeframes, ranging from 0.86 to 0.90 - a consistent structural relationship.

Return for Risk

VUSUX vs. FUAMX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

VUSUX

VUSUX Risk / Return Rank: 2
VUSUX Sharpe Ratio Rank: 2
VUSUX Sortino Ratio Rank: 2
VUSUX Omega Ratio Rank: 2
VUSUX Calmar Ratio Rank: 2
VUSUX Martin Ratio Rank: 2

FUAMX

FUAMX Risk / Return Rank: 6
FUAMX Sharpe Ratio Rank: 6
FUAMX Sortino Ratio Rank: 5
FUAMX Omega Ratio Rank: 5
FUAMX Calmar Ratio Rank: 6
FUAMX Martin Ratio Rank: 6

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

VUSUX vs. FUAMX - Risk-Adjusted Trends Comparison

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

	VUSUX	FUAMX	Difference
Sharpe ratio: Return per unit of total volatility	-0.18	0.19	-0.37
Sortino ratio: Return per unit of downside risk	-0.20	0.30	-0.49
Omega ratio: Gain probability vs. loss probability	0.98	1.03	-0.06
Calmar ratio: Return relative to maximum drawdown	-0.21	0.21	-0.42
Martin ratio: Return relative to average drawdown	-0.47	0.47	-0.94

VUSUX vs. FUAMX - Sharpe Ratio Comparison

The current VUSUX Sharpe Ratio is -0.18, which is lower than the FUAMX Sharpe Ratio of 0.19. The chart below compares the historical Sharpe Ratios of VUSUX and FUAMX, 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

VUSUX vs. FUAMX - Drawdown Comparison

The maximum VUSUX drawdown since its inception was -46.12%, which is greater than FUAMX's maximum drawdown of -20.25%. Use the drawdown chart below to compare losses from any high point for VUSUX and FUAMX.

Drawdown Indicators

	VUSUX	FUAMX	Difference
Max Drawdown Largest peak-to-trough decline	-46.12%	-20.25%	-25.87%
Max Drawdown (1Y) Largest decline over 1 year	-7.42%	-3.72%	-3.70%
Max Drawdown (3Y) Largest decline over 3 years	-13.56%	-5.83%	-7.73%
Max Drawdown (5Y) Largest decline over 5 years	-41.34%	-17.84%	-23.50%
Max Drawdown (10Y) Largest decline over 10 years	-46.12%	—	—
Current Drawdown Current decline from peak	-38.12%	-7.57%	-30.55%
Average Drawdown Average peak-to-trough decline	-11.70%	-7.31%	-4.39%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.29%	1.64%	+1.65%

Volatility

VUSUX vs. FUAMX - Volatility Comparison

Vanguard Long-Term Treasury Fund Admiral Shares (VUSUX) has a higher volatility of 2.32% compared to Fidelity Intermediate Treasury Bond Index Fund (FUAMX) at 1.08%. This indicates that VUSUX's price experiences larger fluctuations and is considered to be riskier than FUAMX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VUSUX	FUAMX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.32%	1.08%	+1.24%
Volatility (6M) Calculated over the trailing 6-month period	6.42%	3.31%	+3.11%
Volatility (1Y) Calculated over the trailing 1-year period	8.45%	4.09%	+4.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.50%	6.63%	+7.87%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	13.69%	5.82%	+7.87%

VUSUX vs. FUAMX - Expense Ratio Comparison

VUSUX has a 0.10% expense ratio, which is higher than FUAMX's 0.03% 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

VUSUX vs. FUAMX - Dividend Comparison

VUSUX's dividend yield for the trailing twelve months is around 4.35%, more than FUAMX's 3.54% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FUAMX Fidelity Intermediate Treasury Bond Index Fund	3.54%	3.52%	3.58%	2.19%	1.24%	1.76%	2.90%	2.16%	2.23%	0.49%	0.00%	0.00%
VUSUX Vanguard Long-Term Treasury Fund Admiral Shares	4.35%	4.39%	4.15%	3.43%	3.05%	4.46%	10.28%	2.92%	2.91%	2.74%	5.38%	5.62%

Frequently Asked Questions

Can I hold both VUSUX and FUAMX in my portfolio?

VUSUX and FUAMX have a correlation of 0.86, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VUSUX or FUAMX?

VUSUX has higher volatility (2.32%) compared to FUAMX (1.08%). In terms of maximum drawdown, VUSUX dropped -46.12% vs FUAMX's -20.25%.

Which has better risk-adjusted returns?

FUAMX currently has the higher Sharpe Ratio (0.19 vs -0.18), 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.