VXF vs. PSX

Last updated Jun 4, 2026

VXF (Vanguard Extended Market ETF) is Mid Cap Blend Equities fund tracking the S&P Completion Index, while PSX (Phillips 66) is a stock. Over the past 10 years, VXF returned 12.08%/yr vs 12.88%/yr for PSX. At a 0.46 correlation, their price movements are largely independent.

Performance

VXF vs. PSX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Extended Market ETF (VXF) and Phillips 66 (PSX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VXF achieves a 13.78% return, which is significantly lower than PSX's 45.34% return. Over the past 10 years, VXF has underperformed PSX with an annualized return of 12.08%, while PSX has yielded a comparatively higher 12.88% annualized return.

VXF

• 1D: -1.02%
• 1M: 4.75%
• YTD: 13.78%
• 6M: 12.61%
• 1Y: 28.88%
• 3Y*: 19.75%
• 5Y*: 6.53%
• 10Y*: 12.08%

PSX

• 1D: 1.16%
• 1M: 4.23%
• YTD: 45.34%
• 6M: 34.11%
• 1Y: 64.71%
• 3Y*: 28.25%
• 5Y*: 19.51%
• 10Y*: 12.88%

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

VXF vs. PSX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VXF Vanguard Extended Market ETF	13.78%	11.40%	16.89%	25.51%	-26.52%	12.31%	32.45%	27.96%	-9.34%	18.06%
PSX Phillips 66	45.34%	17.51%	-11.63%	33.07%	49.58%	8.51%	-33.85%	33.97%	-12.28%	20.94%

Correlation

The correlation between VXF and PSX is 0.07, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.07
Correlation (3Y) Calculated over the trailing 3-year period	0.28
Correlation (5Y) Calculated over the trailing 5-year period	0.34
Correlation (10Y) Calculated over the trailing 10-year period	0.43
Correlation (All Time) Calculated using the full available price history since May 2, 2012	0.46

Over the past year, the correlation between VXF and PSX has dropped to 0.07 - well below their long-term average of 0.46, suggesting their price drivers have been diverging.

Return for Risk

VXF vs. PSX — Risk / Return Rank

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

VXF

VXF Risk / Return Rank: 50
VXF Sharpe Ratio Rank: 48
VXF Sortino Ratio Rank: 47
VXF Omega Ratio Rank: 44
VXF Calmar Ratio Rank: 56
VXF Martin Ratio Rank: 57

PSX

PSX Risk / Return Rank: 87
PSX Sharpe Ratio Rank: 89
PSX Sortino Ratio Rank: 86
PSX Omega Ratio Rank: 85
PSX Calmar Ratio Rank: 86
PSX Martin Ratio Rank: 88

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.

VXF vs. PSX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Extended Market ETF (VXF) and Phillips 66 (PSX). 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.

	VXF	PSX	Difference
Sharpe ratio: Return per unit of total volatility	1.69	2.19	-0.50
Sortino ratio: Return per unit of downside risk	2.38	2.85	-0.47
Omega ratio: Gain probability vs. loss probability	1.29	1.36	-0.07
Calmar ratio: Return relative to maximum drawdown	2.84	3.76	-0.92
Martin ratio: Return relative to average drawdown	10.07	10.90	-0.83
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VXF vs. PSX - Sharpe Ratio Comparison

The current VXF Sharpe Ratio is 1.69, which is comparable to the PSX Sharpe Ratio of 2.19. The chart below compares the historical Sharpe Ratios of VXF and PSX, 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

	VXF	PSX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.69	2.19	-0.50
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.29	0.59	-0.30
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.54	0.37	+0.18
Sharpe Ratio (All Time) Calculated using the full available price history	0.46	0.51	-0.05

Drawdowns

VXF vs. PSX - Drawdown Comparison

The maximum VXF drawdown since its inception was -58.03%, smaller than the maximum PSX drawdown of -64.21%. Use the drawdown chart below to compare losses from any high point for VXF and PSX.

Drawdown Indicators

	VXF	PSX	Difference
Max Drawdown Largest peak-to-trough decline	-58.03%	-64.21%	+6.18%
Max Drawdown (1Y) Largest decline over 1 year	-10.21%	-17.28%	+7.07%
Max Drawdown (3Y) Largest decline over 3 years	-26.92%	-44.37%	+17.45%
Max Drawdown (5Y) Largest decline over 5 years	-36.39%	-44.37%	+7.98%
Max Drawdown (10Y) Largest decline over 10 years	-41.72%	-64.21%	+22.49%
Current Drawdown Current decline from peak	-1.02%	-1.20%	+0.18%
Average Drawdown Average peak-to-trough decline	-9.55%	-14.75%	+5.20%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.87%	5.96%	-3.09%

Volatility

VXF vs. PSX - Volatility Comparison

The current volatility for Vanguard Extended Market ETF (VXF) is 4.87%, while Phillips 66 (PSX) has a volatility of 9.67%. This indicates that VXF experiences smaller price fluctuations and is considered to be less risky than PSX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VXF	PSX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.87%	9.67%	-4.80%
Volatility (6M) Calculated over the trailing 6-month period	12.44%	23.68%	-11.24%
Volatility (1Y) Calculated over the trailing 1-year period	17.22%	29.66%	-12.44%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.33%	33.22%	-10.89%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.29%	35.31%	-13.02%

Dividends

VXF vs. PSX - Dividend Comparison

VXF's dividend yield for the trailing twelve months is around 1.02%, less than PSX's 2.67% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
PSX Phillips 66	2.67%	3.68%	3.95%	3.15%	3.68%	5.00%	5.15%	3.14%	3.60%	2.70%	2.84%	2.67%
VXF Vanguard Extended Market ETF	1.02%	1.14%	1.09%	1.27%	1.15%	1.13%	1.07%	1.30%	1.66%	1.25%	1.43%	1.35%

Frequently Asked Questions

Can I hold both VXF and PSX in my portfolio?

VXF and PSX have a correlation of 0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VXF or PSX?

PSX has higher volatility (9.67%) compared to VXF (4.87%). In terms of maximum drawdown, VXF dropped -58.03% vs PSX's -64.21%.

Which has better risk-adjusted returns?

PSX currently has the higher Sharpe Ratio (2.19 vs 1.69), 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.