FTBFX vs. VFSIX

Last updated Jun 13, 2026

FTBFX (Fidelity Total Bond Fund) and VFSIX (Vanguard Short-Term Investment-Grade Fund Institutional Shares) are both mutual funds - FTBFX is a Intermediate Core-Plus Bond fund actively managed by Fidelity, while VFSIX is a Total Bond Market fund managed by Vanguard. Over the past 10 years, FTBFX returned 2.43%/yr vs 2.60%/yr for VFSIX. A 0.80 correlation means they provide meaningful diversification when combined. FTBFX charges 0.45%/yr vs 0.07%/yr for VFSIX.

Performance

FTBFX vs. VFSIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Fidelity Total Bond Fund (FTBFX) and Vanguard Short-Term Investment-Grade Fund Institutional Shares (VFSIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FTBFX achieves a 0.57% return, which is significantly lower than VFSIX's 0.73% return. Over the past 10 years, FTBFX has underperformed VFSIX with an annualized return of 2.43%, while VFSIX has yielded a comparatively higher 2.60% annualized return.

FTBFX

• 1D: 0.53%
• 1M: 1.21%
• YTD: 0.57%
• 6M: 1.02%
• 1Y: 5.30%
• 3Y*: 4.80%
• 5Y*: 0.60%
• 10Y*: 2.43%

VFSIX

• 1D: 0.19%
• 1M: 0.60%
• YTD: 0.73%
• 6M: 1.22%
• 1Y: 4.72%
• 3Y*: 5.58%
• 5Y*: 2.33%
• 10Y*: 2.60%

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

FTBFX vs. VFSIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FTBFX Fidelity Total Bond Fund	0.57%	7.50%	2.13%	7.25%	-13.58%	-0.44%	9.34%	9.89%	-0.66%	4.19%
VFSIX Vanguard Short-Term Investment-Grade Fund Institutional Shares	0.73%	6.89%	5.12%	5.88%	-5.72%	-0.59%	5.28%	5.88%	1.00%	2.15%

Correlation

The correlation between FTBFX and VFSIX is 0.86, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.86
Correlation (3Y) Calculated over the trailing 3-year period	0.85
Correlation (5Y) Calculated over the trailing 5-year period	0.85
Correlation (10Y) Calculated over the trailing 10-year period	0.81
Correlation (All Time) Calculated using the full available price history since Oct 16, 2002	0.80

The correlation between FTBFX and VFSIX has been stable across timeframes, ranging from 0.80 to 0.86 - a consistent structural relationship.

Return for Risk

FTBFX vs. VFSIX — Risk / Return Rank

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

FTBFX

FTBFX Risk / Return Rank: 34
FTBFX Sharpe Ratio Rank: 36
FTBFX Sortino Ratio Rank: 39
FTBFX Omega Ratio Rank: 35
FTBFX Calmar Ratio Rank: 34
FTBFX Martin Ratio Rank: 28

VFSIX

VFSIX Risk / Return Rank: 77
VFSIX Sharpe Ratio Rank: 72
VFSIX Sortino Ratio Rank: 86
VFSIX Omega Ratio Rank: 82
VFSIX Calmar Ratio Rank: 72
VFSIX Martin Ratio Rank: 71

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.

FTBFX vs. VFSIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Fidelity Total Bond Fund (FTBFX) and Vanguard Short-Term Investment-Grade Fund Institutional Shares (VFSIX). 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.

	FTBFX	VFSIX	Difference
Sharpe ratio: Return per unit of total volatility	1.36	2.01	-0.64
Sortino ratio: Return per unit of downside risk	2.05	3.59	-1.55
Omega ratio: Gain probability vs. loss probability	1.24	1.46	-0.21
Calmar ratio: Return relative to maximum drawdown	1.80	2.72	-0.92
Martin ratio: Return relative to average drawdown	5.30	10.65	-5.35

FTBFX vs. VFSIX - Sharpe Ratio Comparison

The current FTBFX Sharpe Ratio is 1.36, which is lower than the VFSIX Sharpe Ratio of 2.01. The chart below compares the historical Sharpe Ratios of FTBFX and VFSIX, 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

FTBFX vs. VFSIX - Drawdown Comparison

The maximum FTBFX drawdown since its inception was -18.25%, which is greater than VFSIX's maximum drawdown of -9.21%. Use the drawdown chart below to compare losses from any high point for FTBFX and VFSIX.

Drawdown Indicators

	FTBFX	VFSIX	Difference
Max Drawdown Largest peak-to-trough decline	-18.25%	-9.21%	-9.04%
Max Drawdown (1Y) Largest decline over 1 year	-2.89%	-1.71%	-1.18%
Max Drawdown (3Y) Largest decline over 3 years	-5.82%	-1.71%	-4.11%
Max Drawdown (5Y) Largest decline over 5 years	-18.25%	-9.21%	-9.04%
Max Drawdown (10Y) Largest decline over 10 years	-18.25%	-9.21%	-9.04%
Current Drawdown Current decline from peak	-1.31%	-0.32%	-0.99%
Average Drawdown Average peak-to-trough decline	-2.32%	-0.79%	-1.53%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.98%	0.43%	+0.55%

Volatility

FTBFX vs. VFSIX - Volatility Comparison

Fidelity Total Bond Fund (FTBFX) has a higher volatility of 1.43% compared to Vanguard Short-Term Investment-Grade Fund Institutional Shares (VFSIX) at 0.77%. This indicates that FTBFX's price experiences larger fluctuations and is considered to be riskier than VFSIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FTBFX	VFSIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.43%	0.77%	+0.66%
Volatility (6M) Calculated over the trailing 6-month period	2.85%	1.69%	+1.16%
Volatility (1Y) Calculated over the trailing 1-year period	3.84%	2.32%	+1.52%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.67%	2.99%	+2.68%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.73%	2.49%	+2.24%

FTBFX vs. VFSIX - Expense Ratio Comparison

FTBFX has a 0.45% expense ratio, which is higher than VFSIX's 0.07% expense ratio.

Dividends

FTBFX vs. VFSIX - Dividend Comparison

FTBFX's dividend yield for the trailing twelve months is around 4.36%, less than VFSIX's 4.74% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
FTBFX Fidelity Total Bond Fund	4.36%	4.36%	4.15%	4.15%	2.54%	1.89%	5.22%	3.03%	3.19%	2.97%	3.61%	3.30%
VFSIX Vanguard Short-Term Investment-Grade Fund Institutional Shares	4.74%	4.61%	4.19%	2.88%	2.06%	1.81%	2.35%	2.95%	2.80%	2.13%	2.17%	2.12%

Frequently Asked Questions

Can I hold both FTBFX and VFSIX in my portfolio?

FTBFX and VFSIX 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, FTBFX or VFSIX?

FTBFX has higher volatility (1.43%) compared to VFSIX (0.77%). In terms of maximum drawdown, FTBFX dropped -18.25% vs VFSIX's -9.21%.

Which has better risk-adjusted returns?

VFSIX currently has the higher Sharpe Ratio (2.01 vs 1.36), 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.