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MYY vs. FNX
Performance
Return for Risk
Drawdowns
Volatility
Dividends

MYY vs. FNX

Last updated Jun 4, 2026

MYY (ProShares Short S&P Mid Cap400) and FNX (First Trust Mid Cap Core AlphaDEX Fund) are both exchange-traded funds - MYY is a Inverse Equities fund tracking the S&P Mid Cap 400 (-100%), while FNX is a Mid Cap Blend Equities fund tracking the NASDAQ AlphaDEX Mid Cap Core Index. Both are passively managed. Over the past 10 years, MYY returned -11.12%/yr vs 11.90%/yr for FNX. At a correlation of -0.94, they often move in opposite directions. MYY charges 0.95%/yr vs 0.60%/yr for FNX.

Performance

MYY vs. FNX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ProShares Short S&P Mid Cap400 (MYY) and First Trust Mid Cap Core AlphaDEX Fund (FNX). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

In the year-to-date period, MYY achieves a -11.13% return, which is significantly lower than FNX's 11.81% return. Over the past 10 years, MYY has underperformed FNX with an annualized return of -11.12%, while FNX has yielded a comparatively higher 11.90% 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%

FNX

1D
-0.18%
1M
2.71%
YTD
11.81%
6M
11.61%
1Y
26.57%
3Y*
16.99%
5Y*
8.31%
10Y*
11.90%
*Multi-year figures are annualized to reflect compound growth (CAGR)

MYY vs. FNX - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
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%
FNX
First Trust Mid Cap Core AlphaDEX Fund		11.81%9.87%12.21%20.39%-13.57%25.05%16.04%26.97%-11.23%17.66%

Correlation

The correlation between MYY and FNX is -0.97, 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

-0.97

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

-0.97

Correlation (All Time)
Calculated using the full available price history since May 11, 2007

-0.94

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

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

ProShares Short S&P Mid Cap400

First Trust Mid Cap Core AlphaDEX Fund

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Return for Risk

MYY vs. FNX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
MYY
MYY Risk / Return Rank: 11
Overall Rank
MYY Sharpe Ratio Rank: 11
Sharpe Ratio Rank
MYY Sortino Ratio Rank: 22
Sortino Ratio Rank
MYY Omega Ratio Rank: 22
Omega Ratio Rank
MYY Calmar Ratio Rank: 11
Calmar Ratio Rank
MYY Martin Ratio Rank: 00
Martin Ratio Rank
FNX
FNX Risk / Return Rank: 5252
Overall Rank
FNX Sharpe Ratio Rank: 4747
Sharpe Ratio Rank
FNX Sortino Ratio Rank: 5050
Sortino Ratio Rank
FNX Omega Ratio Rank: 4646
Omega Ratio Rank
FNX Calmar Ratio Rank: 5959
Calmar Ratio Rank
FNX Martin Ratio Rank: 5656
Martin Ratio Rank
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. FNX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ProShares Short S&P Mid Cap400 (MYY) and First Trust Mid Cap Core AlphaDEX Fund (FNX). 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.

MYYFNXDifference

Sharpe ratio

Return per unit of total volatility

-1.08

1.66

-2.74

Sortino ratio

Return per unit of downside risk

-1.45

2.44

-3.90

Omega ratio

Gain probability vs. loss probability

0.83

1.29

-0.46

Calmar ratio

Return relative to maximum drawdown

-0.95

2.89

-3.84

Martin ratio

Return relative to average drawdown

-1.75

9.95

-11.69

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. FNX - Sharpe Ratio Comparison

The current MYY Sharpe Ratio is -1.08, which is lower than the FNX Sharpe Ratio of 1.66. The chart below compares the historical Sharpe Ratios of MYY and FNX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Sharpe Ratios by Period

MYYFNXDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

-1.08

1.66

-2.74

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

-0.30

0.41

-0.71

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

-0.52

0.54

-1.07

Sharpe Ratio (All Time)

Calculated using the full available price history

-0.53

0.42

-0.95

Drawdowns

MYY vs. FNX - Drawdown Comparison

The maximum MYY drawdown since its inception was -95.08%, which is greater than FNX's maximum drawdown of -57.11%. Use the drawdown chart below to compare losses from any high point for MYY and FNX.

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Drawdown Indicators

MYYFNXDifference

Max Drawdown

Largest peak-to-trough decline

-95.08%

-57.11%

-37.97%

Max Drawdown (1Y)

Largest decline over 1 year

-17.58%

-9.24%

-8.34%

Max Drawdown (3Y)

Largest decline over 3 years

-33.48%

-24.97%

-8.51%

Max Drawdown (5Y)

Largest decline over 5 years

-36.20%

-24.97%

-11.23%

Max Drawdown (10Y)

Largest decline over 10 years

-71.22%

-43.95%

-27.27%

Current Drawdown

Current decline from peak

-95.07%

-0.77%

-94.30%

Average Drawdown

Average peak-to-trough decline

-72.15%

-8.41%

-63.74%

Ulcer Index

Depth and duration of drawdowns from previous peaks

9.56%

2.68%

+6.88%

Volatility

MYY vs. FNX - Volatility Comparison

ProShares Short S&P Mid Cap400 (MYY) and First Trust Mid Cap Core AlphaDEX Fund (FNX) have volatilities of 4.41% and 4.63%, 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.

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Volatility by Period

MYYFNXDifference

Volatility (1M)

Calculated over the trailing 1-month period

4.41%

4.63%

-0.22%

Volatility (6M)

Calculated over the trailing 6-month period

11.40%

11.43%

-0.03%

Volatility (1Y)

Calculated over the trailing 1-year period

15.59%

16.11%

-0.52%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

19.62%

20.49%

-0.87%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

21.25%

21.97%

-0.72%

MYY vs. FNX - Expense Ratio Comparison

MYY has a 0.95% expense ratio, which is higher than FNX's 0.60% expense ratio.

Dividends

MYY vs. FNX - Dividend Comparison

MYY's dividend yield for the trailing twelve months is around 4.45%, more than FNX's 0.83% yield.

PositionTTM20252024202320222021202020192018201720162015
FNX
First Trust Mid Cap Core AlphaDEX Fund		0.83%0.88%1.26%1.11%1.19%0.94%1.04%1.21%1.01%0.90%1.07%1.07%
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

MYY and FNX have a correlation of -0.97, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

FNX has higher volatility (4.63%) compared to MYY (4.41%). In terms of maximum drawdown, MYY dropped -95.08% vs FNX's -57.11%.

On 10-year performance, FNX leads with 11.90% vs -11.12% for MYY. On fees, FNX is cheaper at 0.60% 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.

Over the 10-year period, FNX has performed better with a 11.90% return vs -11.12%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

FNX is cheaper with a 0.60% expense ratio, compared with 0.95% for MYY.

MYY has the higher dividend yield at 4.45%, compared with 0.83% for FNX.

MYY is categorized as Inverse Equities, while FNX is Mid Cap Blend Equities. MYY tracks S&P Mid Cap 400 (-100%), while FNX tracks NASDAQ AlphaDEX Mid Cap Core Index. They also come from different issuers: ProShares and First Trust. Their fees differ too: 0.95% for MYY and 0.60% for FNX.

FNX currently has the higher Sharpe Ratio (1.66 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.

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