VSGBX vs. PGX

Last updated Jun 3, 2026

VSGBX (Vanguard Short-Term Federal Fund Investor Shares) and PGX (Invesco Preferred ETF) are both funds - VSGBX is a Total Bond Market fund managed by Vanguard, while PGX is a Preferred Stock/Convertible Bonds fund tracking the BofA Merrill Lynch Core Fixed Rate Preferred Securities Index. Over the past 10 years, VSGBX returned 1.81%/yr vs 2.40%/yr for PGX. At a 0.12 correlation, their price movements are largely independent. VSGBX charges 0.20%/yr vs 0.52%/yr for PGX.

Performance

VSGBX vs. PGX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Short-Term Federal Fund Investor Shares (VSGBX) and Invesco Preferred ETF (PGX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VSGBX achieves a 0.60% return, which is significantly higher than PGX's 0.28% return. Over the past 10 years, VSGBX has underperformed PGX with an annualized return of 1.81%, while PGX has yielded a comparatively higher 2.40% annualized return.

VSGBX

• 1D: -0.10%
• 1M: 0.02%
• YTD: 0.60%
• 6M: 0.92%
• 1Y: 3.91%
• 3Y*: 4.43%
• 5Y*: 1.59%
• 10Y*: 1.81%

PGX

• 1D: -0.27%
• 1M: -0.90%
• YTD: 0.28%
• 6M: 0.49%
• 1Y: 6.51%
• 3Y*: 4.39%
• 5Y*: -0.64%
• 10Y*: 2.40%

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

VSGBX vs. PGX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VSGBX Vanguard Short-Term Federal Fund Investor Shares	0.60%	5.83%	4.17%	3.82%	-5.31%	-0.66%	4.36%	4.10%	1.27%	0.69%
PGX Invesco Preferred ETF	0.28%	3.48%	6.53%	9.48%	-21.16%	3.15%	7.09%	17.09%	-4.01%	10.48%

Correlation

The correlation between VSGBX and PGX is 0.37, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.37
Correlation (3Y) Calculated over the trailing 3-year period	0.42
Correlation (5Y) Calculated over the trailing 5-year period	0.37
Correlation (10Y) Calculated over the trailing 10-year period	0.26
Correlation (All Time) Calculated using the full available price history since Feb 1, 2008	0.12

Over the past year, VSGBX and PGX have become more correlated (0.37) than their long-term average of 0.12, meaning their price movements have been converging.

Return for Risk

VSGBX vs. PGX — Risk / Return Rank

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

VSGBX

VSGBX Risk / Return Rank: 52
VSGBX Sharpe Ratio Rank: 37
VSGBX Sortino Ratio Rank: 54
VSGBX Omega Ratio Rank: 47
VSGBX Calmar Ratio Rank: 66
VSGBX Martin Ratio Rank: 55

PGX

PGX Risk / Return Rank: 27
PGX Sharpe Ratio Rank: 30
PGX Sortino Ratio Rank: 30
PGX Omega Ratio Rank: 28
PGX Calmar Ratio Rank: 27
PGX Martin Ratio Rank: 22

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.

VSGBX vs. PGX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Short-Term Federal Fund Investor Shares (VSGBX) and Invesco Preferred ETF (PGX). 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.

	VSGBX	PGX	Difference
Sharpe ratio Return per unit of total volatility	1.79	1.07	+0.72
Sortino ratio Return per unit of downside risk	3.09	1.64	+1.44
Omega ratio Gain probability vs. loss probability	1.37	1.19	+0.18
Calmar ratio Return relative to maximum drawdown	3.14	1.29	+1.86
Martin ratio Return relative to average drawdown	11.21	2.89	+8.33
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VSGBX vs. PGX - Sharpe Ratio Comparison

The current VSGBX Sharpe Ratio is 1.79, which is higher than the PGX Sharpe Ratio of 1.07. The chart below compares the historical Sharpe Ratios of VSGBX and PGX, 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

	VSGBX	PGX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.79	1.07	+0.72
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.60	-0.06	+0.66
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.84	0.19	+0.66
Sharpe Ratio (All Time) Calculated using the full available price history	1.64	0.14	+1.50

Drawdowns

VSGBX vs. PGX - Drawdown Comparison

The maximum VSGBX drawdown since its inception was -7.42%, smaller than the maximum PGX drawdown of -66.44%. Use the drawdown chart below to compare losses from any high point for VSGBX and PGX.

Drawdown Indicators

	VSGBX	PGX	Difference
Max Drawdown Largest peak-to-trough decline	-7.42%	-66.44%	+59.02%
Max Drawdown (1Y) Largest decline over 1 year	-1.35%	-4.98%	+3.63%
Max Drawdown (3Y) Largest decline over 3 years	-1.35%	-11.17%	+9.82%
Max Drawdown (5Y) Largest decline over 5 years	-7.42%	-24.67%	+17.25%
Max Drawdown (10Y) Largest decline over 10 years	-7.42%	-34.10%	+26.68%
Current Drawdown Current decline from peak	-0.40%	-4.86%	+4.46%
Average Drawdown Average peak-to-trough decline	-0.73%	-8.13%	+7.40%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.38%	2.22%	-1.84%

Volatility

VSGBX vs. PGX - Volatility Comparison

The current volatility for Vanguard Short-Term Federal Fund Investor Shares (VSGBX) is 0.71%, while Invesco Preferred ETF (PGX) has a volatility of 1.71%. This indicates that VSGBX experiences smaller price fluctuations and is considered to be less risky than PGX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VSGBX	PGX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.71%	1.71%	-1.00%
Volatility (6M) Calculated over the trailing 6-month period	1.57%	4.13%	-2.56%
Volatility (1Y) Calculated over the trailing 1-year period	2.14%	6.09%	-3.95%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.67%	11.10%	-8.43%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.16%	13.02%	-10.86%

VSGBX vs. PGX - Expense Ratio Comparison

VSGBX has a 0.20% expense ratio, which is lower than PGX's 0.52% expense ratio.

Dividends

VSGBX vs. PGX - Dividend Comparison

VSGBX's dividend yield for the trailing twelve months is around 3.85%, less than PGX's 6.20% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PGX Invesco Preferred ETF	6.20%	6.03%	5.95%	6.42%	6.29%	4.82%	4.89%	4.85%	6.09%	5.66%	6.02%	5.84%
VSGBX Vanguard Short-Term Federal Fund Investor Shares	3.85%	3.69%	3.47%	3.32%	1.67%	1.37%	1.68%	2.32%	1.92%	1.35%	1.33%	1.20%

Frequently Asked Questions

Can I hold both VSGBX and PGX in my portfolio?

VSGBX and PGX have a correlation of 0.37, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VSGBX or PGX?

PGX has higher volatility (1.71%) compared to VSGBX (0.71%). In terms of maximum drawdown, VSGBX dropped -7.42% vs PGX's -66.44%.

Which has better risk-adjusted returns?

VSGBX currently has the higher Sharpe Ratio (1.79 vs 1.07), 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.