DOG vs. VOO

Last updated Jun 14, 2026

DOG (ProShares Short Dow30) and VOO (Vanguard S&P 500 ETF) are both exchange-traded funds - DOG is a Inverse Equities fund tracking the DJ Industrial Average (-100%), while VOO is a S&P 500 fund tracking the S&P 500 Index. Both are passively managed. Over the past 10 years, DOG returned -11.31%/yr vs 15.50%/yr for VOO. At a correlation of -0.91, they often move in opposite directions. DOG charges 0.95%/yr vs 0.03%/yr for VOO.

Performance

DOG vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares Short Dow30 (DOG) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, DOG achieves a -4.92% return, which is significantly lower than VOO's 9.08% return. Over the past 10 years, DOG has underperformed VOO with an annualized return of -11.31%, while VOO has yielded a comparatively higher 15.50% annualized return.

DOG

• 1D: -0.63%
• 1M: -2.03%
• YTD: -4.92%
• 6M: -3.86%
• 1Y: -14.29%
• 3Y*: -8.19%
• 5Y*: -5.62%
• 10Y*: -11.31%

VOO

• 1D: 0.55%
• 1M: -0.84%
• YTD: 9.08%
• 6M: 9.44%
• 1Y: 25.76%
• 3Y*: 20.95%
• 5Y*: 13.43%
• 10Y*: 15.50%

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

DOG vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
DOG ProShares Short Dow30	-4.92%	-8.40%	-5.62%	-7.05%	5.67%	-19.21%	-20.45%	-18.43%	3.55%	-21.51%
VOO Vanguard S&P 500 ETF	9.08%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-4.50%	21.77%

Correlation

The correlation between DOG and VOO is -0.83, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.83
Correlation (3Y) Calculated over the trailing 3-year period	-0.82
Correlation (5Y) Calculated over the trailing 5-year period	-0.87
Correlation (10Y) Calculated over the trailing 10-year period	-0.89
Correlation (All Time) Calculated using the full available price history since Sep 9, 2010	-0.91

The correlation between DOG and VOO has been stable across timeframes, ranging from -0.91 to -0.82 - a consistent structural relationship.

DOG vs. VOO - Sectors Allocation Comparison

Sectors	DOG	VOO
Financial Services	91.1%	11.6%
Basic Materials	-	1.8%
Communication Services	-	11.1%
Consumer Cyclical	-	10.1%
Consumer Defensive	-	4.9%
Energy	-	3.5%
Healthcare	-	8.5%
Industrials	-	8.0%
Real Estate	-	1.9%
Technology	-	35.6%
Utilities	-	2.8%

Return for Risk

DOG vs. VOO — Risk / Return Rank

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

DOG

DOG Risk / Return Rank: 2
DOG Sharpe Ratio Rank: 1
DOG Sortino Ratio Rank: 2
DOG Omega Ratio Rank: 2
DOG Calmar Ratio Rank: 2
DOG Martin Ratio Rank: 2

VOO

VOO Risk / Return Rank: 70
VOO Sharpe Ratio Rank: 71
VOO Sortino Ratio Rank: 69
VOO Omega Ratio Rank: 71
VOO Calmar Ratio Rank: 63
VOO 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.

DOG vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares Short Dow30 (DOG) and Vanguard S&P 500 ETF (VOO). 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.

	DOG	VOO	Difference
Sharpe ratio: Return per unit of total volatility	-1.01	1.99	-3.01
Sortino ratio: Return per unit of downside risk	-1.37	2.70	-4.06
Omega ratio: Gain probability vs. loss probability	0.85	1.36	-0.52
Calmar ratio: Return relative to maximum drawdown	-0.84	2.75	-3.59
Martin ratio: Return relative to average drawdown	-1.38	12.42	-13.80

DOG vs. VOO - Sharpe Ratio Comparison

The current DOG Sharpe Ratio is -1.01, which is lower than the VOO Sharpe Ratio of 1.99. The chart below compares the historical Sharpe Ratios of DOG and VOO, 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

DOG vs. VOO - Drawdown Comparison

The maximum DOG drawdown since its inception was -92.73%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for DOG and VOO.

Drawdown Indicators

	DOG	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-92.73%	-33.99%	-58.74%
Max Drawdown (1Y) Largest decline over 1 year	-15.09%	-8.90%	-6.19%
Max Drawdown (3Y) Largest decline over 3 years	-29.16%	-18.69%	-10.47%
Max Drawdown (5Y) Largest decline over 5 years	-34.35%	-24.52%	-9.83%
Max Drawdown (10Y) Largest decline over 10 years	-70.95%	-33.99%	-36.96%
Current Drawdown Current decline from peak	-92.67%	-2.34%	-90.33%
Average Drawdown Average peak-to-trough decline	-66.41%	-3.68%	-62.73%
Ulcer Index Depth and duration of drawdowns from previous peaks	9.18%	1.97%	+7.21%

Volatility

DOG vs. VOO - Volatility Comparison

ProShares Short Dow30 (DOG) and Vanguard S&P 500 ETF (VOO) have volatilities of 4.36% and 4.34%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	DOG	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.36%	4.34%	+0.02%
Volatility (6M) Calculated over the trailing 6-month period	9.87%	9.58%	+0.29%
Volatility (1Y) Calculated over the trailing 1-year period	12.56%	12.27%	+0.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	14.86%	16.88%	-2.02%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.51%	18.03%	-0.52%

DOG vs. VOO - Expense Ratio Comparison

DOG has a 0.95% expense ratio, which is higher than VOO's 0.03% expense ratio.

Dividends

DOG vs. VOO - Dividend Comparison

DOG's dividend yield for the trailing twelve months is around 3.52%, more than VOO's 1.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
DOG ProShares Short Dow30	3.52%	3.65%	5.72%	4.54%	0.41%	0.00%	0.14%	1.54%	0.86%	0.04%	0.00%	0.00%
VOO Vanguard S&P 500 ETF	1.05%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both DOG and VOO in my portfolio?

DOG and VOO have a correlation of -0.83, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, DOG or VOO?

DOG has higher volatility (4.36%) compared to VOO (4.34%). In terms of maximum drawdown, DOG dropped -92.73% vs VOO's -33.99%.

Which ETF is better, DOG or VOO?

On 10-year performance, VOO leads with 15.50% vs -11.31% for DOG. On fees, VOO is cheaper at 0.03% per year. Their volatility is very similar. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, DOG or VOO?

Over the 10-year period, VOO has performed better with a 15.50% return vs -11.31%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, DOG or VOO?

VOO is cheaper with a 0.03% expense ratio, compared with 0.95% for DOG.

Which ETF pays a higher dividend yield, DOG or VOO?

DOG has the higher dividend yield at 3.52%, compared with 1.05% for VOO.

What is the main difference between DOG and VOO?

DOG is categorized as Inverse Equities, while VOO is S&P 500. DOG tracks DJ Industrial Average (-100%), while VOO tracks S&P 500 Index. They also come from different issuers: ProShares and Vanguard. Their fees differ too: 0.95% for DOG and 0.03% for VOO.

Which has better risk-adjusted returns?

VOO currently has the higher Sharpe Ratio (1.99 vs -1.01), 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.