MYY vs. MDYG

Last updated Jun 4, 2026

MYY (ProShares Short S&P Mid Cap400) and MDYG (SPDR S&P 400 Mid Cap Growth ETF) are both exchange-traded funds - MYY is a Inverse Equities fund tracking the S&P Mid Cap 400 (-100%), while MDYG is a Mid Cap Growth Equities fund tracking the S&P MidCap 400 Growth Index. Both are passively managed. Over the past 10 years, MYY returned -11.12%/yr vs 11.58%/yr for MDYG. At a correlation of -0.94, they often move in opposite directions. MYY charges 0.95%/yr vs 0.15%/yr for MDYG.

Performance

MYY vs. MDYG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares Short S&P Mid Cap400 (MYY) and SPDR S&P 400 Mid Cap Growth ETF (MDYG). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MYY achieves a -11.13% return, which is significantly lower than MDYG's 19.12% return. Over the past 10 years, MYY has underperformed MDYG with an annualized return of -11.12%, while MDYG has yielded a comparatively higher 11.58% annualized return.

MYY

• 1D: 0.02%
• 1M: -3.52%
• YTD: -11.13%
• 6M: -11.03%
• 1Y: -16.67%
• 3Y*: -9.90%
• 5Y*: -5.92%
• 10Y*: -11.12%

MDYG

• 1D: 0.19%
• 1M: 5.83%
• YTD: 19.12%
• 6M: 19.35%
• 1Y: 29.98%
• 3Y*: 18.05%
• 5Y*: 8.60%
• 10Y*: 11.58%

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

MYY vs. MDYG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
MYY ProShares Short S&P Mid Cap400	-11.13%	-4.05%	-7.08%	-9.46%	10.23%	-23.04%	-25.94%	-19.98%	12.79%	-14.63%
MDYG SPDR S&P 400 Mid Cap Growth ETF	19.12%	7.22%	15.84%	17.30%	-18.92%	18.46%	22.57%	26.10%	-10.46%	19.61%

Correlation

The correlation between MYY and MDYG is -0.96, 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	-0.96
Correlation (3Y) Calculated over the trailing 3-year period	-0.97
Correlation (5Y) Calculated over the trailing 5-year period	-0.98
Correlation (10Y) Calculated over the trailing 10-year period	-0.96
Correlation (All Time) Calculated using the full available price history since Jun 22, 2006	-0.94

The correlation between MYY and MDYG has been stable across timeframes, ranging from -0.98 to -0.94 - a consistent structural relationship.

Return for Risk

MYY vs. MDYG — Risk / Return Rank

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

MYY

MYY Risk / Return Rank: 1
MYY Sharpe Ratio Rank: 1
MYY Sortino Ratio Rank: 2
MYY Omega Ratio Rank: 2
MYY Calmar Ratio Rank: 1
MYY Martin Ratio Rank: 0

MDYG

MDYG Risk / Return Rank: 55
MDYG Sharpe Ratio Rank: 50
MDYG Sortino Ratio Rank: 52
MDYG Omega Ratio Rank: 48
MDYG Calmar Ratio Rank: 60
MDYG Martin Ratio Rank: 66

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.

MYY vs. MDYG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares Short S&P Mid Cap400 (MYY) and SPDR S&P 400 Mid Cap Growth ETF (MDYG). 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	MDYG	Difference
Sharpe ratio Return per unit of total volatility	-1.08	1.77	-2.85
Sortino ratio Return per unit of downside risk	-1.45	2.54	-3.99
Omega ratio Gain probability vs. loss probability	0.83	1.31	-0.48
Calmar ratio Return relative to maximum drawdown	-0.95	3.04	-3.99
Martin ratio Return relative to average drawdown	-1.75	12.15	-13.90
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MYY vs. MDYG - Sharpe Ratio Comparison

The current MYY Sharpe Ratio is -1.08, which is lower than the MDYG Sharpe Ratio of 1.77. The chart below compares the historical Sharpe Ratios of MYY and MDYG, 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

	MYY	MDYG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-1.08	1.77	-2.85
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.30	0.42	-0.72
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	-0.52	0.55	-1.08
Sharpe Ratio (All Time) Calculated using the full available price history	-0.53	0.48	-1.01

Drawdowns

MYY vs. MDYG - Drawdown Comparison

The maximum MYY drawdown since its inception was -95.08%, which is greater than MDYG's maximum drawdown of -58.44%. Use the drawdown chart below to compare losses from any high point for MYY and MDYG.

Drawdown Indicators

	MYY	MDYG	Difference
Max Drawdown Largest peak-to-trough decline	-95.08%	-58.44%	-36.64%
Max Drawdown (1Y) Largest decline over 1 year	-17.58%	-9.91%	-7.67%
Max Drawdown (3Y) Largest decline over 3 years	-33.48%	-25.45%	-8.03%
Max Drawdown (5Y) Largest decline over 5 years	-36.20%	-29.26%	-6.94%
Max Drawdown (10Y) Largest decline over 10 years	-71.22%	-39.27%	-31.95%
Current Drawdown Current decline from peak	-95.07%	0.00%	-95.07%
Average Drawdown Average peak-to-trough decline	-72.15%	-8.03%	-64.12%
Ulcer Index Depth and duration of drawdowns from previous peaks	9.56%	2.47%	+7.09%

Volatility

MYY vs. MDYG - Volatility Comparison

The current volatility for ProShares Short S&P Mid Cap400 (MYY) is 4.41%, while SPDR S&P 400 Mid Cap Growth ETF (MDYG) has a volatility of 5.23%. This indicates that MYY experiences smaller price fluctuations and is considered to be less risky than MDYG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	MYY	MDYG	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.41%	5.23%	-0.82%
Volatility (6M) Calculated over the trailing 6-month period	11.40%	13.22%	-1.82%
Volatility (1Y) Calculated over the trailing 1-year period	15.59%	17.05%	-1.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.62%	20.62%	-1.00%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.25%	21.05%	+0.20%

MYY vs. MDYG - Expense Ratio Comparison

MYY has a 0.95% expense ratio, which is higher than MDYG's 0.15% expense ratio.

Dividends

MYY vs. MDYG - Dividend Comparison

MYY's dividend yield for the trailing twelve months is around 4.45%, more than MDYG's 0.61% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
MDYG SPDR S&P 400 Mid Cap Growth ETF	0.61%	0.75%	0.87%	1.20%	1.16%	0.69%	0.71%	1.21%	1.36%	2.23%	1.25%	2.51%
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%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MYY and MDYG in my portfolio?

MYY and MDYG have a correlation of -0.96, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MYY or MDYG?

MDYG has higher volatility (5.23%) compared to MYY (4.41%). In terms of maximum drawdown, MYY dropped -95.08% vs MDYG's -58.44%.

Which ETF is better, MYY or MDYG?

On 10-year performance, MDYG leads with 11.58% vs -11.12% for MYY. On fees, MDYG is cheaper at 0.15% per year. On volatility, MYY has been the lower-risk option at 4.41%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MYY or MDYG?

Over the 10-year period, MDYG has performed better with a 11.58% return vs -11.12%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MYY or MDYG?

MDYG is cheaper with a 0.15% expense ratio, compared with 0.95% for MYY.

Which ETF pays a higher dividend yield, MYY or MDYG?

MYY has the higher dividend yield at 4.45%, compared with 0.61% for MDYG.

What is the main difference between MYY and MDYG?

MYY is categorized as Inverse Equities, while MDYG is Mid Cap Growth Equities. MYY tracks S&P Mid Cap 400 (-100%), while MDYG tracks S&P MidCap 400 Growth Index. They also come from different issuers: ProShares and State Street. Their fees differ too: 0.95% for MYY and 0.15% for MDYG.

Which has better risk-adjusted returns?

MDYG currently has the higher Sharpe Ratio (1.77 vs -1.08), 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.