MYY vs. DOG
MYY (ProShares Short S&P Mid Cap400) and DOG (ProShares Short Dow30) are both Inverse Equities funds from ProShares - MYY tracks the S&P Mid Cap 400 (-100%) while DOG tracks the DJ Industrial Average (-100%). Both are passively managed. Over the past 10 years, MYY returned -11.12%/yr vs -11.28%/yr for DOG. Their correlation of 0.84 suggests significant overlap in exposure. Both charge a 0.95% expense ratio.
Performance
MYY vs. DOG - Performance Comparison
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Returns By Period
In the year-to-date period, MYY achieves a -11.15% return, which is significantly lower than DOG's -5.22% return. Both investments have delivered pretty close results over the past 10 years, with MYY having a -11.12% annualized return and DOG not far behind at -11.28%.
MYY
- 1D
- -0.81%
- 1M
- -2.87%
- YTD
- -11.15%
- 6M
- -11.58%
- 1Y
- -17.83%
- 3Y*
- -9.90%
- 5Y*
- -6.02%
- 10Y*
- -11.12%
DOG
- 1D
- -0.49%
- 1M
- -3.31%
- YTD
- -5.22%
- 6M
- -5.93%
- 1Y
- -14.18%
- 3Y*
- -8.62%
- 5Y*
- -5.63%
- 10Y*
- -11.28%
MYY vs. DOG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MYY ProShares Short S&P Mid Cap400 | -11.15% | -4.05% | -7.08% | -9.46% | 10.23% | -23.04% | -25.94% | -19.98% | 12.79% | -14.63% |
DOG ProShares Short Dow30 | -5.22% | -8.40% | -5.62% | -7.05% | 5.67% | -19.21% | -20.45% | -18.43% | 3.55% | -21.51% |
Correlation
The correlation between MYY and DOG is 0.80, 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 | 0.80 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.80 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.84 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.82 |
Correlation (All Time) Calculated using the full available price history since Jun 22, 2006 | 0.84 |
The correlation between MYY and DOG has been stable across timeframes, ranging from 0.80 to 0.84 - a consistent structural relationship.
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Return for Risk
MYY vs. DOG — Risk / Return Rank
MYY
DOG
MYY vs. DOG - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProShares Short S&P Mid Cap400 (MYY) and ProShares Short Dow30 (DOG). 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.
| MYY | DOG | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | -1.15 | -1.18 | +0.03 |
Sortino ratioReturn per unit of downside risk | -1.56 | -1.61 | +0.05 |
Omega ratioGain probability vs. loss probability | 0.82 | 0.82 | 0.00 |
Calmar ratioReturn relative to maximum drawdown | -0.99 | -0.98 | -0.01 |
Martin ratioReturn relative to average drawdown | -1.80 | -1.62 | -0.19 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| MYY | DOG | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -1.15 | -1.18 | +0.03 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.31 | -0.38 | +0.07 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | -0.52 | -0.65 | +0.12 |
Sharpe Ratio (All Time)Calculated using the full available price history | -0.53 | -0.57 | +0.04 |
Drawdowns
MYY vs. DOG - Drawdown Comparison
The maximum MYY drawdown since its inception was -95.08%, roughly equal to the maximum DOG drawdown of -92.69%. Use the drawdown chart below to compare losses from any high point for MYY and DOG.
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Drawdown Indicators
| MYY | DOG | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -95.08% | -92.69% | -2.39% |
Max Drawdown (1Y)Largest decline over 1 year | -17.58% | -14.63% | -2.95% |
Max Drawdown (3Y)Largest decline over 3 years | -33.48% | -28.77% | -4.71% |
Max Drawdown (5Y)Largest decline over 5 years | -36.20% | -33.99% | -2.21% |
Max Drawdown (10Y)Largest decline over 10 years | -71.22% | -70.79% | -0.43% |
Current DrawdownCurrent decline from peak | -95.08% | -92.69% | -2.39% |
Average DrawdownAverage peak-to-trough decline | -72.14% | -66.39% | -5.75% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 9.74% | 8.85% | +0.89% |
Volatility
MYY vs. DOG - Volatility Comparison
ProShares Short S&P Mid Cap400 (MYY) has a higher volatility of 4.49% compared to ProShares Short Dow30 (DOG) at 3.01%. This indicates that MYY's price experiences larger fluctuations and is considered to be riskier than DOG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MYY | DOG | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.49% | 3.01% | +1.48% |
Volatility (6M)Calculated over the trailing 6-month period | 11.42% | 9.33% | +2.09% |
Volatility (1Y)Calculated over the trailing 1-year period | 15.59% | 12.07% | +3.52% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 19.62% | 14.78% | +4.84% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 21.26% | 17.49% | +3.77% |
MYY vs. DOG - Expense Ratio Comparison
Both MYY and DOG have an expense ratio of 0.95%.
Dividends
MYY vs. DOG - Dividend Comparison
MYY's dividend yield for the trailing twelve months is around 4.45%, more than DOG's 3.53% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
DOG ProShares Short Dow30 | 3.53% | 3.65% | 5.72% | 4.54% | 0.41% | 0.00% | 0.14% | 1.54% | 0.86% | 0.04% |
MYY ProShares Short S&P Mid Cap400 | 4.45% | 4.20% | 4.92% | 5.08% | 0.40% | 0.00% | 0.05% | 1.52% | 0.34% | 0.00% |
Frequently Asked Questions
MYY and DOG have a correlation of 0.80, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
MYY has higher volatility (4.49%) compared to DOG (3.01%). In terms of maximum drawdown, MYY dropped -95.08% vs DOG's -92.69%.
On 10-year performance, MYY leads with -11.12% vs -11.28% for DOG. Both ETFs have the same 0.95% expense ratio. On volatility, DOG has been the lower-risk option at 3.01%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, MYY has performed better with a -11.12% return vs -11.28%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
MYY and DOG have the same expense ratio: 0.95% per year.
MYY has the higher dividend yield at 4.45%, compared with 3.53% for DOG.
MYY tracks S&P Mid Cap 400 (-100%), while DOG tracks DJ Industrial Average (-100%).
MYY currently has the higher Sharpe Ratio (-1.15 vs -1.18), 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.
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