SO vs. CDNS

Last updated Jun 13, 2026

SO (The Southern Company) and CDNS (Cadence Design Systems, Inc.) are both stocks. SO operates in Utilities - Regulated Electric (Utilities), while CDNS operates in Software - Application (Technology). Over the past 10 years, SO returned 10.77%/yr vs 31.77%/yr for CDNS. At a 0.10 correlation, their price movements are largely independent.

Performance

SO vs. CDNS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in The Southern Company (SO) and Cadence Design Systems, Inc. (CDNS). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SO achieves a 10.02% return, which is significantly lower than CDNS's 23.16% return. Over the past 10 years, SO has underperformed CDNS with an annualized return of 10.77%, while CDNS has yielded a comparatively higher 31.77% annualized return.

SO

• 1D: 1.22%
• 1M: 2.86%
• YTD: 10.02%
• 6M: 13.62%
• 1Y: 7.91%
• 3Y*: 14.19%
• 5Y*: 12.20%
• 10Y*: 10.77%

CDNS

• 1D: 0.32%
• 1M: 10.86%
• YTD: 23.16%
• 6M: 19.10%
• 1Y: 28.32%
• 3Y*: 17.22%
• 5Y*: 24.39%
• 10Y*: 31.77%

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

SO vs. CDNS - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SO The Southern Company	10.02%	9.47%	21.72%	2.21%	8.24%	16.34%	0.63%	51.65%	-3.75%	2.42%
CDNS Cadence Design Systems, Inc.	23.16%	4.03%	10.31%	69.55%	-13.80%	36.59%	96.70%	59.52%	3.97%	65.82%

Correlation

The correlation between SO and CDNS is -0.20, 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	-0.20
Correlation (3Y) Calculated over the trailing 3-year period	-0.17
Correlation (5Y) Calculated over the trailing 5-year period	-0.02
Correlation (10Y) Calculated over the trailing 10-year period	0.06
Correlation (All Time) Calculated using the full available price history since Mar 26, 1990	0.10

The correlation between SO and CDNS shifts across timeframes, from -0.20 (1 year) to 0.10 (all time), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap SO : $106.03B CDNS : $105.37B
EPS SO : $3.92 CDNS : $4.28
PE Ratio SO : 23.98 CDNS : 89.86
PEG Ratio SO : 1.49 CDNS : 6.85
PS Ratio SO : 3.47 CDNS : 19.03
PB Ratio SO : 2.86 CDNS : 12.08
Total Revenue (TTM) SO : $30.17B CDNS : $5.53B
Gross Profit (TTM) SO : $13.01B CDNS : $4.91B
EBITDA (TTM) SO : $14.44B CDNS : $1.87B

Return for Risk

SO vs. CDNS — Risk / Return Rank

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

SO

SO Risk / Return Rank: 54
SO Sharpe Ratio Rank: 60
SO Sortino Ratio Rank: 52
SO Omega Ratio Rank: 50
SO Calmar Ratio Rank: 55
SO Martin Ratio Rank: 56

CDNS

CDNS Risk / Return Rank: 61
CDNS Sharpe Ratio Rank: 64
CDNS Sortino Ratio Rank: 61
CDNS Omega Ratio Rank: 60
CDNS Calmar Ratio Rank: 61
CDNS Martin Ratio Rank: 61

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. CDNS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for The Southern Company (SO) and Cadence Design Systems, Inc. (CDNS). 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.

	SO	CDNS	Difference
Sharpe ratio: Return per unit of total volatility	0.49	0.65	-0.16
Sortino ratio: Return per unit of downside risk	0.81	1.18	-0.37
Omega ratio: Gain probability vs. loss probability	1.10	1.15	-0.05
Calmar ratio: Return relative to maximum drawdown	0.53	0.87	-0.34
Martin ratio: Return relative to average drawdown	1.24	1.84	-0.61

SO vs. CDNS - Sharpe Ratio Comparison

The current SO Sharpe Ratio is 0.49, which is comparable to the CDNS Sharpe Ratio of 0.65. The chart below compares the historical Sharpe Ratios of SO and CDNS, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

SO vs. CDNS - Drawdown Comparison

The maximum SO drawdown since its inception was -38.43%, smaller than the maximum CDNS drawdown of -93.13%. Use the drawdown chart below to compare losses from any high point for SO and CDNS.

Drawdown Indicators

	SO	CDNS	Difference
Max Drawdown Largest peak-to-trough decline	-38.43%	-93.13%	+54.70%
Max Drawdown (1Y) Largest decline over 1 year	-14.99%	-28.85%	+13.86%
Max Drawdown (3Y) Largest decline over 3 years	-14.99%	-29.05%	+14.06%
Max Drawdown (5Y) Largest decline over 5 years	-23.28%	-29.59%	+6.31%
Max Drawdown (10Y) Largest decline over 10 years	-38.43%	-32.12%	-6.31%
Current Drawdown Current decline from peak	-3.95%	-7.55%	+3.60%
Average Drawdown Average peak-to-trough decline	-6.87%	-39.62%	+32.75%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.39%	13.63%	-7.24%

Volatility

SO vs. CDNS - Volatility Comparison

The current volatility for The Southern Company (SO) is 6.03%, while Cadence Design Systems, Inc. (CDNS) has a volatility of 16.52%. This indicates that SO experiences smaller price fluctuations and is considered to be less risky than CDNS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SO	CDNS	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.03%	16.52%	-10.49%
Volatility (6M) Calculated over the trailing 6-month period	13.07%	31.73%	-18.66%
Volatility (1Y) Calculated over the trailing 1-year period	16.21%	38.94%	-22.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.67%	36.17%	-17.50%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	21.96%	34.12%	-12.16%

Dividends

SO vs. CDNS - Dividend Comparison

SO's dividend yield for the trailing twelve months is around 3.60%, while CDNS has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CDNS Cadence Design Systems, Inc.	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	3.60%	3.37%	3.47%	3.96%	3.78%	3.82%	4.13%	3.86%	5.42%	4.78%	4.52%	4.60%

Financials

SO vs. CDNS - Profitability Comparison

The chart below illustrates the profitability comparison between The Southern Company and Cadence Design Systems, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

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%.

CDNS - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Cadence Design Systems, Inc. reported a gross profit of 1.41B and revenue of 1.47B. Therefore, the gross margin over that period was 95.9%.

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%.

CDNS - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Cadence Design Systems, Inc. reported an operating income of 431.33M and revenue of 1.47B, resulting in an operating margin of 29.3%.

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%.

CDNS - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Cadence Design Systems, Inc. reported a net income of 335.66M and revenue of 1.47B, resulting in a net margin of 22.8%.

Frequently Asked Questions

Can I hold both SO and CDNS in my portfolio?

SO and CDNS have a correlation of -0.20, 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 CDNS?

CDNS has higher volatility (16.52%) compared to SO (6.03%). In terms of maximum drawdown, SO dropped -38.43% vs CDNS's -93.13%.

Which has better risk-adjusted returns?

CDNS currently has the higher Sharpe Ratio (0.65 vs 0.49), 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.