CI vs. KO

Last updated Jun 6, 2026

CI (Cigna Corporation) and KO (The Coca-Cola Company) are both stocks. CI operates in Healthcare Plans (Healthcare), while KO operates in Beverages - Non-Alcoholic (Consumer Defensive). Over the past 10 years, CI returned 9.53%/yr vs 9.15%/yr for KO. At a 0.30 correlation, their price movements are largely independent.

Performance

CI vs. KO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Cigna Corporation (CI) and The Coca-Cola Company (KO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CI achieves a 6.37% return, which is significantly lower than KO's 14.47% return. Both investments have delivered pretty close results over the past 10 years, with CI having a 9.53% annualized return and KO not far behind at 9.15%.

CI

• 1D: 3.14%
• 1M: 3.25%
• YTD: 6.37%
• 6M: 10.29%
• 1Y: -4.86%
• 3Y*: 5.21%
• 5Y*: 4.73%
• 10Y*: 9.53%

KO

• 1D: 3.46%
• 1M: 0.32%
• YTD: 14.47%
• 6M: 14.32%
• 1Y: 15.33%
• 3Y*: 12.95%
• 5Y*: 10.40%
• 10Y*: 9.15%

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

CI vs. KO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CI Cigna Corporation	6.37%	1.72%	-6.27%	-7.97%	46.68%	12.29%	1.83%	7.70%	-6.46%	52.29%
KO The Coca-Cola Company	14.47%	15.60%	8.88%	-4.43%	10.61%	11.37%	2.47%	20.60%	6.77%	14.38%

Correlation

The correlation between CI and KO is 0.20, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.20
Correlation (3Y) Calculated over the trailing 3-year period	0.28
Correlation (5Y) Calculated over the trailing 5-year period	0.34
Correlation (10Y) Calculated over the trailing 10-year period	0.29
Correlation (All Time) Calculated using the full available price history since Apr 1, 1982	0.30

The correlation between CI and KO shifts across timeframes, from 0.20 (1 year) to 0.34 (5 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap CI : $76.43B KO : $342.88B
EPS CI : $23.59 KO : $3.18
PE Ratio CI : 12.27 KO : 25.02
PEG Ratio CI : 0.71 KO : 3.02
PS Ratio CI : 0.28 KO : 6.96
PB Ratio CI : 1.81 KO : 10.19
Total Revenue (TTM) CI : $277.94B KO : $49.28B
Gross Profit (TTM) CI : $19.38B KO : $30.43B
EBITDA (TTM) CI : $10.03B KO : $18.35B

Return for Risk

CI vs. KO — Risk / Return Rank

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

CI

CI Risk / Return Rank: 34
CI Sharpe Ratio Rank: 35
CI Sortino Ratio Rank: 31
CI Omega Ratio Rank: 31
CI Calmar Ratio Rank: 35
CI Martin Ratio Rank: 36

KO

KO Risk / Return Rank: 68
KO Sharpe Ratio Rank: 70
KO Sortino Ratio Rank: 66
KO Omega Ratio Rank: 61
KO Calmar Ratio Rank: 74
KO Martin Ratio Rank: 71

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.

CI vs. KO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Cigna Corporation (CI) and The Coca-Cola Company (KO). 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.

	CI	KO	Difference
Sharpe ratio: Return per unit of total volatility	-0.15	0.94	-1.09
Sortino ratio: Return per unit of downside risk	0.03	1.54	-1.51
Omega ratio: Gain probability vs. loss probability	1.00	1.17	-0.17
Calmar ratio: Return relative to maximum drawdown	-0.18	1.95	-2.14
Martin ratio: Return relative to average drawdown	-0.34	3.82	-4.15
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CI vs. KO - Sharpe Ratio Comparison

The current CI Sharpe Ratio is -0.15, which is lower than the KO Sharpe Ratio of 0.94. The chart below compares the historical Sharpe Ratios of CI and KO, 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

	CI	KO	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.15	0.94	-1.09
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.17	0.65	-0.48
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.31	0.50	-0.19
Sharpe Ratio (All Time) Calculated using the full available price history	0.34	0.53	-0.19

Drawdowns

CI vs. KO - Drawdown Comparison

The maximum CI drawdown since its inception was -84.34%, which is greater than KO's maximum drawdown of -68.23%. Use the drawdown chart below to compare losses from any high point for CI and KO.

Drawdown Indicators

	CI	KO	Difference
Max Drawdown Largest peak-to-trough decline	-84.34%	-68.23%	-16.11%
Max Drawdown (1Y) Largest decline over 1 year	-26.54%	-7.89%	-18.65%
Max Drawdown (3Y) Largest decline over 3 years	-32.10%	-16.26%	-15.84%
Max Drawdown (5Y) Largest decline over 5 years	-32.10%	-17.27%	-14.83%
Max Drawdown (10Y) Largest decline over 10 years	-42.47%	-36.99%	-5.48%
Current Drawdown Current decline from peak	-18.21%	-2.98%	-15.23%
Average Drawdown Average peak-to-trough decline	-18.82%	-16.09%	-2.73%
Ulcer Index Depth and duration of drawdowns from previous peaks	14.51%	4.03%	+10.48%

Volatility

CI vs. KO - Volatility Comparison

Cigna Corporation (CI) has a higher volatility of 9.35% compared to The Coca-Cola Company (KO) at 5.91%. This indicates that CI's price experiences larger fluctuations and is considered to be riskier than KO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CI	KO	Difference
Volatility (1M) Calculated over the trailing 1-month period	9.35%	5.91%	+3.44%
Volatility (6M) Calculated over the trailing 6-month period	18.86%	12.38%	+6.48%
Volatility (1Y) Calculated over the trailing 1-year period	33.18%	16.37%	+16.81%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	28.43%	16.10%	+12.33%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	30.75%	18.20%	+12.55%

Dividends

CI vs. KO - Dividend Comparison

CI's dividend yield for the trailing twelve months is around 2.12%, less than KO's 2.59% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CI Cigna Corporation	2.12%	2.19%	2.03%	1.64%	1.35%	1.74%	0.02%	0.02%	0.02%	0.02%	0.03%	0.03%
KO The Coca-Cola Company	2.59%	2.92%	3.12%	3.12%	2.77%	2.84%	2.99%	2.89%	3.29%	3.23%	3.38%	3.07%

Financials

CI vs. KO - Profitability Comparison

The chart below illustrates the profitability comparison between Cigna Corporation and The Coca-Cola Company over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

CI - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Cigna Corporation reported a gross profit of 0.00 and revenue of 68.49B. Therefore, the gross margin over that period was 0.0%.

KO - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, The Coca-Cola Company reported a gross profit of 7.85B and revenue of 12.47B. Therefore, the gross margin over that period was 63.0%.

CI - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Cigna Corporation reported an operating income of 2.36B and revenue of 68.49B, resulting in an operating margin of 3.4%.

KO - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, The Coca-Cola Company reported an operating income of 4.36B and revenue of 12.47B, resulting in an operating margin of 35.0%.

CI - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Cigna Corporation reported a net income of 1.65B and revenue of 68.49B, resulting in a net margin of 2.4%.

KO - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, The Coca-Cola Company reported a net income of 3.92B and revenue of 12.47B, resulting in a net margin of 31.5%.

Frequently Asked Questions

Can I hold both CI and KO in my portfolio?

CI and KO 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, CI or KO?

CI has higher volatility (9.35%) compared to KO (5.91%). In terms of maximum drawdown, CI dropped -84.34% vs KO's -68.23%.

Which has better risk-adjusted returns?

KO currently has the higher Sharpe Ratio (0.94 vs -0.15), 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.