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 -10.81%/yr vs -11.12%/yr for DOG. Their correlation of 0.84 means they have usually moved in the same direction. 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 -10.96% return, which is significantly lower than DOG's -6.75% return. Both investments have delivered pretty close results over the past 10 years, with MYY having a -10.81% annualized return and DOG not far behind at -11.12%.
MYY
- 1D
- 0.02%
- 1M
- 1.28%
- 6M
- -7.74%
- YTD
- -10.96%
- 1Y
- -15.28%
- 3Y*
- -7.56%
- 5Y*
- -5.91%
- 10Y*
- -10.81%
- ALL TIME*
- -11.59%
DOG
- 1D
- -0.51%
- 1M
- 1.03%
- 6M
- -5.42%
- YTD
- -6.75%
- 1Y
- -13.86%
- 3Y*
- -7.85%
- 5Y*
- -5.65%
- 10Y*
- -11.12%
- ALL TIME*
- -10.34%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $40.27M | $36.96M | $41.35M | |
| $319.02K | $183.72K | $161.47K |
MYY vs. DOG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MYY ProShares Short S&P Mid Cap400 | -10.96% | -4.05% | -7.08% | -9.46% | 10.23% | -23.04% | -25.94% | -19.98% | 12.79% | -14.63% |
DOG ProShares Short Dow30 | -6.75% | -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 0.76, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.76 |
Correlation (3Y) Balances recent behavior with more history. | 0.80 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.84 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.82 |
Correlation (All Time) Calculated using the full available price history since Jun 21, 2006 | 0.84 |
The correlation between MYY and DOG has been stable across timeframes, ranging from 0.76 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.
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.
| MYY | DOG | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.12 | ||
| Sortino ratioReturn per unit of downside risk | +0.20 | ||
| Omega ratioGain probability vs. loss probability | 0.86 | 0.85 | +0.02 |
| Calmar ratioReturn relative to maximum drawdown | -0.77 | -0.85 | +0.08 |
| Martin ratioReturn relative to average drawdown | -1.35 | -1.48 | +0.13 |
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Drawdowns
MYY vs. DOG - Drawdown Comparison
The maximum MYY drawdown since its inception was -95.20%, roughly equal to the maximum DOG drawdown of -92.90%. 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 | -95.20% | -92.90% | -2.30% |
Max Drawdown (1Y)Largest decline over 1 year | -18.25% | -15.02% | -3.23% |
Max Drawdown (3Y)Largest decline over 3 years | -35.14% | -30.86% | -4.28% |
Max Drawdown (5Y)Largest decline over 5 years | -37.79% | -35.93% | -1.86% |
Max Drawdown (10Y)Largest decline over 10 years | -71.93% | -70.07% | -1.86% |
Current DrawdownCurrent decline from peak | -95.07% | -92.81% | -2.26% |
Average DrawdownAverage peak-to-trough decline | -72.31% | -66.59% | -5.72% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 10.38% | 8.60% | +1.78% |
Volatility
MYY vs. DOG - Volatility Comparison
The current volatility for ProShares Short S&P Mid Cap400 (MYY) is 3.36%, while ProShares Short Dow30 (DOG) has a volatility of 3.74%. This indicates that MYY experiences smaller price fluctuations and is considered to be less risky 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 | 3.36% | 3.74% | -0.38% |
Volatility (6M)Calculated over the trailing 6-month period | 11.59% | 9.94% | +1.65% |
Volatility (1Y)Calculated over the trailing 1-year period | 15.70% | 12.59% | +3.11% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 19.53% | 14.83% | +4.70% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 21.21% | 17.49% | +3.72% |
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 4.28%, more than DOG's 3.38% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
DOG ProShares Short Dow30 | 3.38% | 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 | 4.28% | 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 0.76, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
DOG has higher volatility (3.74%) compared to MYY (3.36%). In terms of maximum drawdown, MYY dropped -95.20% vs DOG's -92.90%.
On 10-year performance, MYY leads with -10.81% vs -11.12% for DOG. Both ETFs have the same 0.95% expense ratio. On volatility, MYY has been the lower-risk option at 3.36%. 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 -10.81% return vs -11.12%. 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 4.28%, compared with 3.38% for DOG.
MYY tracks S&P Mid Cap 400 (-100%), while DOG tracks DJ Industrial Average (-100%).
MYY currently has the higher Sharpe Ratio (-0.90 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.
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