EIX vs. SO
EIX (Edison International) and SO (The Southern Company) are both stocks. Both operate in the Utilities - Regulated Electric industry within the Utilities sector. Over the past 10 years, EIX returned 4.40%/yr vs 10.83%/yr for SO. A 0.50 correlation means they provide meaningful diversification when combined.
Performance
EIX vs. SO - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, EIX achieves a 25.47% return, which is significantly higher than SO's 7.91% return. Over the past 10 years, EIX has underperformed SO with an annualized return of 4.40%, while SO has yielded a comparatively higher 10.83% annualized return.
EIX
- 1D
- 2.12%
- 1M
- 6.35%
- YTD
- 25.47%
- 6M
- 29.64%
- 1Y
- 44.50%
- 3Y*
- 8.42%
- 5Y*
- 10.46%
- 10Y*
- 4.40%
SO
- 1D
- 1.07%
- 1M
- 1.71%
- YTD
- 7.91%
- 6M
- 9.06%
- 1Y
- 8.35%
- 3Y*
- 14.05%
- 5Y*
- 11.60%
- 10Y*
- 10.83%
EIX vs. SO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
EIX Edison International | 25.47% | -20.42% | 15.24% | 17.37% | -2.58% | 13.59% | -12.75% | 37.61% | -6.65% | -9.48% |
SO The Southern Company | 7.91% | 9.47% | 21.72% | 2.21% | 8.24% | 16.34% | 0.63% | 51.65% | -3.75% | 2.42% |
Correlation
The correlation between EIX and SO is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.45 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.56 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.60 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.59 |
Correlation (All Time) Calculated using the full available price history since Jan 4, 1982 | 0.50 |
The correlation between EIX and SO shifts across timeframes, from 0.45 (1 year) to 0.60 (5 years), reflecting how their relationship changes across market environments.
Fundamentals
EIX:
$28.23B
SO:
$104.45B
EIX:
$9.61
SO:
$3.92
EIX:
7.63
SO:
23.62
EIX:
0.09
SO:
1.46
EIX:
1.44
SO:
3.42
EIX:
1.64
SO:
2.81
EIX:
$19.61B
SO:
$30.17B
EIX:
$4.27B
SO:
$13.01B
EIX:
$6.48B
SO:
$14.44B
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
EIX vs. SO — Risk / Return Rank
EIX
SO
EIX vs. SO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Edison International (EIX) and The Southern Company (SO). 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.
| EIX | SO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.23 | ||
| Sortino ratioReturn per unit of downside risk | +1.44 | ||
| Omega ratioGain probability vs. loss probability | 1.30 | 1.10 | +0.20 |
| Calmar ratioReturn relative to maximum drawdown | 4.33 | 0.55 | +3.78 |
| Martin ratioReturn relative to average drawdown | 10.71 | 1.29 | +9.42 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| EIX | SO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.75 | 0.52 | +1.23 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.41 | 0.62 | -0.21 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.16 | 0.49 | -0.34 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.33 | 0.62 | -0.30 |
Drawdowns
EIX vs. SO - Drawdown Comparison
The maximum EIX drawdown since its inception was -72.18%, which is greater than SO's maximum drawdown of -38.43%. Use the drawdown chart below to compare losses from any high point for EIX and SO.
Loading charts...
Drawdown Indicators
| EIX | SO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -72.18% | -38.43% | -33.75% |
Max Drawdown (1Y)Largest decline over 1 year | -10.39% | -14.99% | +4.60% |
Max Drawdown (3Y)Largest decline over 3 years | -43.88% | -14.99% | -28.89% |
Max Drawdown (5Y)Largest decline over 5 years | -43.88% | -23.28% | -20.60% |
Max Drawdown (10Y)Largest decline over 10 years | -43.88% | -38.43% | -5.45% |
Current DrawdownCurrent decline from peak | -9.78% | -5.79% | -3.99% |
Average DrawdownAverage peak-to-trough decline | -15.02% | -6.87% | -8.15% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.20% | 6.35% | -2.15% |
Volatility
EIX vs. SO - Volatility Comparison
Edison International (EIX) has a higher volatility of 6.88% compared to The Southern Company (SO) at 5.62%. This indicates that EIX's price experiences larger fluctuations and is considered to be riskier than SO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| EIX | SO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.88% | 5.62% | +1.26% |
Volatility (6M)Calculated over the trailing 6-month period | 17.18% | 12.98% | +4.20% |
Volatility (1Y)Calculated over the trailing 1-year period | 25.80% | 15.97% | +9.83% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 25.40% | 18.65% | +6.75% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 28.04% | 21.94% | +6.10% |
Dividends
EIX vs. SO - Dividend Comparison
EIX's dividend yield for the trailing twelve months is around 4.65%, more than SO's 3.22% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
EIX Edison International | 4.65% | 5.51% | 2.93% | 4.19% | 4.46% | 3.94% | 4.10% | 3.28% | 4.28% | 3.53% | 2.75% | 2.93% |
SO The Southern Company | 3.22% | 3.37% | 3.47% | 3.96% | 3.78% | 3.82% | 4.13% | 3.86% | 5.42% | 4.78% | 4.52% | 4.60% |
Financials
EIX vs. SO - Financials Comparison
This section allows you to compare key financial metrics between Edison International and The Southern Company. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
EIX vs. SO - Profitability Comparison
EIX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Edison International reported a gross profit of 0.00 and revenue of 4.10B. Therefore, the gross margin over that period was 0.0%.
SO - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, The Southern Company reported a gross profit of 3.90B and revenue of 8.40B. Therefore, the gross margin over that period was 46.5%.
EIX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Edison International reported an operating income of 1.07B and revenue of 4.10B, resulting in an operating margin of 26.2%.
SO - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, The Southern Company reported an operating income of 2.02B and revenue of 8.40B, resulting in an operating margin of 24.0%.
EIX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Edison International reported a net income of 570.00M and revenue of 4.10B, resulting in a net margin of 13.9%.
SO - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, The Southern Company reported a net income of 1.36B and revenue of 8.40B, resulting in a net margin of 16.2%.
Frequently Asked Questions
EIX and SO have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
EIX has higher volatility (6.88%) compared to SO (5.62%). In terms of maximum drawdown, EIX dropped -72.18% vs SO's -38.43%.
EIX currently has the higher Sharpe Ratio (1.75 vs 0.52), 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.
Find the right allocation for EIX and SO
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer