SO vs. EUO

Last updated Jun 9, 2026

SO (The Southern Company) is a stock, while EUO (ProShares UltraShort Euro) is Leveraged Currency fund tracking the USD/EUR Exchange Rate (-200%). Over the past 10 years, SO returned 10.45%/yr vs 2.38%/yr for EUO. At a correlation of -0.13, they often move in opposite directions.

Performance

SO vs. EUO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in The Southern Company (SO) and ProShares UltraShort Euro (EUO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SO achieves a 6.37% return, which is significantly higher than EUO's 5.79% return. Over the past 10 years, SO has outperformed EUO with an annualized return of 10.45%, while EUO has yielded a comparatively lower 2.38% annualized return.

SO

• 1D: -1.43%
• 1M: 0.26%
• YTD: 6.37%
• 6M: 8.41%
• 1Y: 6.80%
• 3Y*: 12.49%
• 5Y*: 11.53%
• 10Y*: 10.45%

EUO

• 1D: -0.20%
• 1M: 4.68%
• YTD: 5.79%
• 6M: 4.10%
• 1Y: 2.43%
• 3Y*: 0.08%
• 5Y*: 5.80%
• 10Y*: 2.38%

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

SO vs. EUO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SO The Southern Company	6.37%	9.47%	21.72%	2.21%	8.24%	16.34%	0.63%	51.65%	-3.75%	2.42%
EUO ProShares UltraShort Euro	5.79%	-18.87%	19.79%	-1.02%	13.88%	14.83%	-15.97%	10.51%	14.39%	-21.71%

Correlation

The correlation between SO and EUO is -0.05, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.05
Correlation (3Y) Calculated over the trailing 3-year period	-0.11
Correlation (5Y) Calculated over the trailing 5-year period	-0.13
Correlation (10Y) Calculated over the trailing 10-year period	-0.09
Correlation (All Time) Calculated using the full available price history since Nov 25, 2008	-0.13

Return for Risk

SO vs. EUO — Risk / Return Rank

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

SO

SO Risk / Return Rank: 52
SO Sharpe Ratio Rank: 57
SO Sortino Ratio Rank: 49
SO Omega Ratio Rank: 47
SO Calmar Ratio Rank: 53
SO Martin Ratio Rank: 54

EUO

EUO Risk / Return Rank: 12
EUO Sharpe Ratio Rank: 12
EUO Sortino Ratio Rank: 11
EUO Omega Ratio Rank: 11
EUO Calmar Ratio Rank: 13
EUO Martin Ratio Rank: 13

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.

SO vs. EUO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for The Southern Company (SO) and ProShares UltraShort Euro (EUO). 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.

	SO	EUO	Difference
Sharpe ratio: Return per unit of total volatility	0.43	0.19	+0.23
Sortino ratio: Return per unit of downside risk	0.72	0.36	+0.36
Omega ratio: Gain probability vs. loss probability	1.09	1.04	+0.04
Calmar ratio: Return relative to maximum drawdown	0.46	0.30	+0.15
Martin ratio: Return relative to average drawdown	1.07	0.67	+0.41
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SO vs. EUO - Sharpe Ratio Comparison

The current SO Sharpe Ratio is 0.43, which is higher than the EUO Sharpe Ratio of 0.19. The chart below compares the historical Sharpe Ratios of SO and EUO, 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

	SO	EUO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.43	0.19	+0.23
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.62	0.37	+0.25
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.48	0.16	+0.32
Sharpe Ratio (All Time) Calculated using the full available price history	0.62	0.06	+0.56

Drawdowns

SO vs. EUO - Drawdown Comparison

The maximum SO drawdown since its inception was -38.43%, roughly equal to the maximum EUO drawdown of -38.58%. Use the drawdown chart below to compare losses from any high point for SO and EUO.

Drawdown Indicators

	SO	EUO	Difference
Max Drawdown Largest peak-to-trough decline	-38.43%	-38.58%	+0.15%
Max Drawdown (1Y) Largest decline over 1 year	-14.99%	-8.05%	-6.94%
Max Drawdown (3Y) Largest decline over 3 years	-14.99%	-24.46%	+9.47%
Max Drawdown (5Y) Largest decline over 5 years	-23.28%	-25.28%	+2.00%
Max Drawdown (10Y) Largest decline over 10 years	-38.43%	-29.61%	-8.82%
Current Drawdown Current decline from peak	-7.14%	-17.46%	+10.32%
Average Drawdown Average peak-to-trough decline	-6.87%	-18.50%	+11.63%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.36%	3.71%	+2.65%

Volatility

SO vs. EUO - Volatility Comparison

The Southern Company (SO) has a higher volatility of 5.69% compared to ProShares UltraShort Euro (EUO) at 2.76%. This indicates that SO's price experiences larger fluctuations and is considered to be riskier than EUO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SO	EUO	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.69%	2.76%	+2.93%
Volatility (6M) Calculated over the trailing 6-month period	13.05%	8.81%	+4.24%
Volatility (1Y) Calculated over the trailing 1-year period	16.07%	12.68%	+3.39%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.64%	15.57%	+3.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.96%	14.88%	+7.08%

Dividends

SO vs. EUO - Dividend Comparison

SO's dividend yield for the trailing twelve months is around 3.26%, while EUO has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
EUO ProShares UltraShort Euro	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SO The Southern Company	3.26%	3.37%	3.47%	3.96%	3.78%	3.82%	4.13%	3.86%	5.42%	4.78%	4.52%	4.60%

Frequently Asked Questions

Can I hold both SO and EUO in my portfolio?

SO and EUO have a correlation of -0.05, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SO or EUO?

SO has higher volatility (5.69%) compared to EUO (2.76%). In terms of maximum drawdown, SO dropped -38.43% vs EUO's -38.58%.

Which has better risk-adjusted returns?

SO currently has the higher Sharpe Ratio (0.43 vs 0.19), 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.