VO vs. SPHY

Last updated Jun 9, 2026

VO (Vanguard Mid-Cap ETF) and SPHY (SPDR Portfolio High Yield Bond ETF) are both exchange-traded funds - VO is a Mid Cap Blend Equities fund tracking the CRSP US Mid Cap Index, while SPHY is a High Yield Bonds fund tracking the ICE BofA US High Yield Index. Both are passively managed. Over the past 10 years, VO returned 11.44%/yr vs 5.03%/yr for SPHY. At a 0.46 correlation, their price movements are largely independent. VO charges 0.03%/yr vs 0.05%/yr for SPHY.

Performance

VO vs. SPHY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard Mid-Cap ETF (VO) and SPDR Portfolio High Yield Bond ETF (SPHY). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VO achieves a 8.60% return, which is significantly higher than SPHY's 1.32% return. Over the past 10 years, VO has outperformed SPHY with an annualized return of 11.44%, while SPHY has yielded a comparatively lower 5.03% annualized return.

VO

• 1D: -0.04%
• 1M: 1.75%
• YTD: 8.60%
• 6M: 8.43%
• 1Y: 16.32%
• 3Y*: 15.78%
• 5Y*: 7.59%
• 10Y*: 11.44%

SPHY

• 1D: 0.09%
• 1M: -0.18%
• YTD: 1.32%
• 6M: 1.93%
• 1Y: 6.98%
• 3Y*: 8.78%
• 5Y*: 4.29%
• 10Y*: 5.03%

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

VO vs. SPHY - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
VO Vanguard Mid-Cap ETF	8.60%	11.62%	15.31%	16.03%	-18.73%	24.70%	18.10%	30.98%	-9.24%	19.28%
SPHY SPDR Portfolio High Yield Bond ETF	1.32%	8.59%	8.54%	12.81%	-10.57%	5.61%	6.65%	13.16%	-3.35%	7.35%

Correlation

The correlation between VO and SPHY is 0.71, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.71
Correlation (3Y) Calculated over the trailing 3-year period	0.71
Correlation (5Y) Calculated over the trailing 5-year period	0.73
Correlation (10Y) Calculated over the trailing 10-year period	0.60
Correlation (All Time) Calculated using the full available price history since Jun 20, 2012	0.46

Over the past year, VO and SPHY have become more correlated (0.71) than their long-term average of 0.46, meaning their price movements have been converging.

VO vs. SPHY - Sectors Allocation Comparison

Sectors	VO	SPHY
Technology	18.6%	-
Industrials	17.9%	-
Financial Services	12.8%	99.9%
Consumer Cyclical	8.6%	-
Energy	8.5%	0.1%
Utilities	8.3%	-
Healthcare	7.6%	-
Real Estate	5.4%	-
Consumer Defensive	4.8%	-
Basic Materials	4.2%	-
Communication Services	3.1%	-

Return for Risk

VO vs. SPHY — Risk / Return Rank

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

VO

VO Risk / Return Rank: 43
VO Sharpe Ratio Rank: 41
VO Sortino Ratio Rank: 41
VO Omega Ratio Rank: 38
VO Calmar Ratio Rank: 45
VO Martin Ratio Rank: 50

SPHY

SPHY Risk / Return Rank: 69
SPHY Sharpe Ratio Rank: 63
SPHY Sortino Ratio Rank: 70
SPHY Omega Ratio Rank: 70
SPHY Calmar Ratio Rank: 64
SPHY Martin Ratio Rank: 76

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.

VO vs. SPHY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard Mid-Cap ETF (VO) and SPDR Portfolio High Yield Bond ETF (SPHY). 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.

	VO	SPHY	Difference
Sharpe ratio: Return per unit of total volatility	1.31	1.90	-0.59
Sortino ratio: Return per unit of downside risk	1.89	2.88	-0.98
Omega ratio: Gain probability vs. loss probability	1.23	1.38	-0.14
Calmar ratio: Return relative to maximum drawdown	2.01	2.90	-0.90
Martin ratio: Return relative to average drawdown	7.62	13.14	-5.52
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VO vs. SPHY - Sharpe Ratio Comparison

The current VO Sharpe Ratio is 1.31, which is lower than the SPHY Sharpe Ratio of 1.90. The chart below compares the historical Sharpe Ratios of VO and SPHY, 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

	VO	SPHY	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.31	1.90	-0.59
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.43	0.60	-0.17
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.61	0.64	-0.03
Sharpe Ratio (All Time) Calculated using the full available price history	0.50	0.63	-0.13

Drawdowns

VO vs. SPHY - Drawdown Comparison

The maximum VO drawdown since its inception was -58.87%, which is greater than SPHY's maximum drawdown of -21.97%. Use the drawdown chart below to compare losses from any high point for VO and SPHY.

Drawdown Indicators

	VO	SPHY	Difference
Max Drawdown Largest peak-to-trough decline	-58.87%	-21.97%	-36.90%
Max Drawdown (1Y) Largest decline over 1 year	-8.17%	-2.41%	-5.76%
Max Drawdown (3Y) Largest decline over 3 years	-19.02%	-4.85%	-14.17%
Max Drawdown (5Y) Largest decline over 5 years	-27.57%	-15.29%	-12.28%
Max Drawdown (10Y) Largest decline over 10 years	-39.37%	-21.97%	-17.40%
Current Drawdown Current decline from peak	-2.10%	-0.44%	-1.66%
Average Drawdown Average peak-to-trough decline	-7.86%	-2.29%	-5.57%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.15%	0.53%	+1.62%

Volatility

VO vs. SPHY - Volatility Comparison

Vanguard Mid-Cap ETF (VO) has a higher volatility of 3.51% compared to SPDR Portfolio High Yield Bond ETF (SPHY) at 1.10%. This indicates that VO's price experiences larger fluctuations and is considered to be riskier than SPHY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VO	SPHY	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.51%	1.10%	+2.41%
Volatility (6M) Calculated over the trailing 6-month period	9.46%	2.94%	+6.52%
Volatility (1Y) Calculated over the trailing 1-year period	12.51%	3.69%	+8.82%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.62%	7.18%	+10.44%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.96%	7.88%	+11.08%

VO vs. SPHY - Expense Ratio Comparison

VO has a 0.03% expense ratio, which is lower than SPHY's 0.05% 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

VO vs. SPHY - Dividend Comparison

VO's dividend yield for the trailing twelve months is around 1.38%, less than SPHY's 7.28% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
SPHY SPDR Portfolio High Yield Bond ETF	7.28%	7.38%	7.80%	7.30%	6.47%	5.13%	5.63%	5.73%	4.09%	4.41%	4.27%	4.29%
VO Vanguard Mid-Cap ETF	1.38%	1.52%	1.49%	1.52%	1.60%	1.12%	1.45%	1.48%	1.82%	1.35%	1.45%	1.47%

Frequently Asked Questions

Can I hold both VO and SPHY in my portfolio?

VO and SPHY have a correlation of 0.71, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, VO or SPHY?

VO has higher volatility (3.51%) compared to SPHY (1.10%). In terms of maximum drawdown, VO dropped -58.87% vs SPHY's -21.97%.

Which ETF is better, VO or SPHY?

On 10-year performance, VO leads with 11.44% vs 5.03% for SPHY. On fees, VO is cheaper at 0.03% per year. On volatility, SPHY has been the lower-risk option at 1.10%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, VO or SPHY?

Over the 10-year period, VO has performed better with a 11.44% return vs 5.03%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, VO or SPHY?

VO is cheaper with a 0.03% expense ratio, compared with 0.05% for SPHY.

Which ETF pays a higher dividend yield, VO or SPHY?

SPHY has the higher dividend yield at 7.28%, compared with 1.38% for VO.

What is the main difference between VO and SPHY?

VO is categorized as Mid Cap Blend Equities, while SPHY is High Yield Bonds. VO tracks CRSP US Mid Cap Index, while SPHY tracks ICE BofA US High Yield Index. They also come from different issuers: Vanguard and State Street. Their fees differ too: 0.03% for VO and 0.05% for SPHY.

Which has better risk-adjusted returns?

SPHY currently has the higher Sharpe Ratio (1.90 vs 1.31), 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.