GSK vs. CPK
GSK (GlaxoSmithKline plc) and CPK (Chesapeake Utilities Corporation) are both stocks. GSK operates in Drug Manufacturers - General (Healthcare), while CPK operates in Utilities - Regulated Gas (Utilities). Over the past 10 years, GSK returned 5.35%/yr vs 9.34%/yr for CPK. At a 0.13 correlation, their price movements are largely independent.
Performance
GSK vs. CPK - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, GSK achieves a 9.89% return, which is significantly higher than CPK's -0.45% return. Over the past 10 years, GSK has underperformed CPK with an annualized return of 5.35%, while CPK has yielded a comparatively higher 9.34% annualized return.
GSK
- 1D
- 0.34%
- 1M
- 6.78%
- YTD
- 9.89%
- 6M
- 10.40%
- 1Y
- 34.50%
- 3Y*
- 19.84%
- 5Y*
- 5.34%
- 10Y*
- 5.35%
CPK
- 1D
- 1.01%
- 1M
- -0.98%
- YTD
- -0.45%
- 6M
- -1.95%
- 1Y
- 5.77%
- 3Y*
- 0.97%
- 5Y*
- 2.45%
- 10Y*
- 9.34%
GSK vs. CPK - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
GSK GlaxoSmithKline plc | 9.89% | 51.23% | -5.14% | 9.71% | -33.41% | 26.74% | -17.72% | 29.24% | 13.79% | -2.97% |
CPK Chesapeake Utilities Corporation | -0.45% | 5.07% | 17.44% | -8.83% | -17.61% | 36.78% | 15.15% | 19.88% | 5.37% | 19.34% |
Correlation
The correlation between GSK and CPK is 0.19, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.19 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.22 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.21 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.20 |
Correlation (All Time) Calculated using the full available price history since Mar 26, 1990 | 0.13 |
Fundamentals
GSK:
$108.04B
CPK:
$2.97B
GSK:
£2.85
CPK:
$3.21
GSK:
13.90
CPK:
38.50
GSK:
0.93
CPK:
6.11
GSK:
2.47
CPK:
4.93
GSK:
3.42
CPK:
1.80K
GSK:
£32.78B
CPK:
$586.05M
GSK:
£23.87B
CPK:
$313.50M
GSK:
£11.30B
CPK:
$224.92M
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
GSK vs. CPK — Risk / Return Rank
GSK
CPK
GSK vs. CPK - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for GlaxoSmithKline plc (GSK) and Chesapeake Utilities Corporation (CPK). 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.
| GSK | CPK | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.86 | ||
| Sortino ratioReturn per unit of downside risk | +1.22 | ||
| Omega ratioGain probability vs. loss probability | 1.20 | 1.05 | +0.15 |
| Calmar ratioReturn relative to maximum drawdown | 1.58 | 0.34 | +1.24 |
| Martin ratioReturn relative to average drawdown | 3.92 | 0.70 | +3.22 |
Loading charts...
Drawdowns
GSK vs. CPK - Drawdown Comparison
The maximum GSK drawdown since its inception was -55.70%, which is greater than CPK's maximum drawdown of -44.54%. Use the drawdown chart below to compare losses from any high point for GSK and CPK.
Loading charts...
Drawdown Indicators
| GSK | CPK | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.70% | -44.54% | -11.16% |
Max Drawdown (1Y)Largest decline over 1 year | -18.63% | -12.54% | -6.09% |
Max Drawdown (3Y)Largest decline over 3 years | -28.46% | -31.17% | +2.71% |
Max Drawdown (5Y)Largest decline over 5 years | -50.10% | -38.67% | -11.43% |
Max Drawdown (10Y)Largest decline over 10 years | -50.10% | -38.67% | -11.43% |
Current DrawdownCurrent decline from peak | -11.92% | -10.20% | -1.72% |
Average DrawdownAverage peak-to-trough decline | -18.87% | -8.82% | -10.05% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 8.28% | 6.14% | +2.14% |
Volatility
GSK vs. CPK - Volatility Comparison
GlaxoSmithKline plc (GSK) has a higher volatility of 6.81% compared to Chesapeake Utilities Corporation (CPK) at 6.17%. This indicates that GSK's price experiences larger fluctuations and is considered to be riskier than CPK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| GSK | CPK | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.81% | 6.17% | +0.64% |
Volatility (6M)Calculated over the trailing 6-month period | 18.49% | 13.88% | +4.61% |
Volatility (1Y)Calculated over the trailing 1-year period | 27.06% | 18.84% | +8.22% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 25.08% | 22.79% | +2.29% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.89% | 26.65% | -3.76% |
Dividends
GSK vs. CPK - Dividend Comparison
GSK's dividend yield for the trailing twelve months is around 3.26%, more than CPK's 2.22% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CPK Chesapeake Utilities Corporation | 2.22% | 2.16% | 2.07% | 2.18% | 1.76% | 1.29% | 1.59% | 1.65% | 1.77% | 1.63% | 1.80% | 2.00% |
GSK GlaxoSmithKline plc | 3.26% | 3.42% | 4.60% | 3.75% | 5.47% | 4.99% | 5.59% | 4.35% | 5.65% | 5.83% | 6.86% | 5.93% |
Financials
GSK vs. CPK - Financials Comparison
This section allows you to compare key financial metrics between GlaxoSmithKline plc and Chesapeake Utilities Corporation. 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
GSK vs. CPK - Profitability Comparison
GSK - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, GlaxoSmithKline plc reported a gross profit of 5.75B and revenue of 7.63B. Therefore, the gross margin over that period was 75.4%.
CPK - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Chesapeake Utilities Corporation reported a gross profit of 0.00 and revenue of 353.10K. Therefore, the gross margin over that period was 0.0%.
GSK - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, GlaxoSmithKline plc reported an operating income of 2.29B and revenue of 7.63B, resulting in an operating margin of 30.1%.
CPK - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Chesapeake Utilities Corporation reported an operating income of 99.40K and revenue of 353.10K, resulting in an operating margin of 28.2%.
GSK - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, GlaxoSmithKline plc reported a net income of 1.74B and revenue of 7.63B, resulting in a net margin of 22.8%.
CPK - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Chesapeake Utilities Corporation reported a net income of 59.30K and revenue of 353.10K, resulting in a net margin of 16.8%.
Frequently Asked Questions
GSK and CPK have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
GSK has higher volatility (6.81%) compared to CPK (6.17%). In terms of maximum drawdown, GSK dropped -55.70% vs CPK's -44.54%.
GSK currently has the higher Sharpe Ratio (1.09 vs 0.23), 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 GSK and CPK
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