GSK vs. NGG

Last updated Apr 1, 2026

Compare and contrast key facts about GlaxoSmithKline plc (GSK) and National Grid plc (NGG).

Performance

GSK vs. NGG - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in GlaxoSmithKline plc (GSK) and National Grid plc (NGG). The values are adjusted to include any dividend payments, if applicable.

GSK vs. NGG - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
GSK GlaxoSmithKline plc	13.45%	51.23%	-5.14%	9.71%	-33.41%	26.74%	-17.72%	29.24%	13.79%	-2.97%
NGG National Grid plc	9.37%	35.88%	-1.26%	18.82%	-12.68%	29.02%	-0.75%	38.53%	-13.76%	4.94%

Fundamentals

Market Cap GSK : $112.75B NGG : $83.75B
EPS GSK : $2.78 NGG : $4.66
PE Ratio GSK : 19.82 NGG : 18.17
PEG Ratio GSK : 1.33 NGG : 0.50
PS Ratio GSK : 3.54 NGG : 2.31
PB Ratio GSK : 6.90 NGG : 2.25
Total Revenue (TTM) GSK : $31.95B NGG : $36.25B
Gross Profit (TTM) GSK : $23.18B NGG : $9.82B
EBITDA (TTM) GSK : $11.62B NGG : $12.97B

Returns By Period

In the year-to-date period, GSK achieves a 13.45% return, which is significantly higher than NGG's 9.37% return. Over the past 10 years, GSK has underperformed NGG with an annualized return of 5.74%, while NGG has yielded a comparatively higher 7.77% annualized return.

GSK

• 1D: 1.77%
• 1M: -6.66%
• YTD: 13.45%
• 6M: 30.03%
• 1Y: 48.15%
• 3Y*: 20.43%
• 5Y*: 8.75%
• 10Y*: 5.74%

NGG

• 1D: 1.09%
• 1M: -9.78%
• YTD: 9.37%
• 6M: 18.08%
• 1Y: 34.59%
• 3Y*: 15.65%
• 5Y*: 14.22%
• 10Y*: 7.77%

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

Return for Risk

GSK vs. NGG — Risk / Return Rank

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

GSK

GSK Risk / Return Rank: 85
GSK Sharpe Ratio Rank: 88
GSK Sortino Ratio Rank: 84
GSK Omega Ratio Rank: 81
GSK Calmar Ratio Rank: 88
GSK Martin Ratio Rank: 85

NGG

NGG Risk / Return Rank: 84
NGG Sharpe Ratio Rank: 86
NGG Sortino Ratio Rank: 79
NGG Omega Ratio Rank: 82
NGG Calmar Ratio Rank: 84
NGG Martin Ratio Rank: 88

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.

GSK vs. NGG - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for GlaxoSmithKline plc (GSK) and National Grid plc (NGG). 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.

	GSK	NGG	Difference
Sharpe ratio Return per unit of total volatility	1.70	1.54	+0.16
Sortino ratio Return per unit of downside risk	2.30	2.01	+0.28
Omega ratio Gain probability vs. loss probability	1.29	1.29	0.00
Calmar ratio Return relative to maximum drawdown	3.25	2.71	+0.54
Martin ratio Return relative to average drawdown	7.56	8.94	-1.38
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

GSK vs. NGG - Sharpe Ratio Comparison

The current GSK Sharpe Ratio is 1.70, which is comparable to the NGG Sharpe Ratio of 1.54. The chart below compares the historical Sharpe Ratios of GSK and NGG, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	GSK	NGG	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.70	1.54	+0.16
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.36	0.66	-0.31
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.25	0.34	-0.09
Sharpe Ratio (All Time) Calculated using the full available price history	0.33	0.37	-0.04

Correlation

The correlation between GSK and NGG is 0.40, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

GSK vs. NGG - Dividend Comparison

GSK's dividend yield for the trailing twelve months is around 3.19%, less than NGG's 3.69% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
GSK GlaxoSmithKline plc	3.19%	3.42%	4.60%	3.75%	5.47%	4.99%	5.59%	4.35%	5.65%	5.83%	6.86%	5.93%
NGG National Grid plc	3.69%	4.03%	11.81%	5.20%	5.18%	4.75%	5.32%	4.94%	6.51%	14.95%	5.07%	4.73%

Drawdowns

GSK vs. NGG - Drawdown Comparison

The maximum GSK drawdown since its inception was -55.70%, roughly equal to the maximum NGG drawdown of -54.85%. Use the drawdown chart below to compare losses from any high point for GSK and NGG.

Drawdown Indicators

	GSK	NGG	Difference
Max Drawdown Largest peak-to-trough decline	-55.70%	-54.85%	-0.85%
Max Drawdown (1Y) Largest decline over 1 year	-14.80%	-12.79%	-2.01%
Max Drawdown (5Y) Largest decline over 5 years	-50.10%	-39.20%	-10.90%
Max Drawdown (10Y) Largest decline over 10 years	-50.10%	-39.20%	-10.90%
Current Drawdown Current decline from peak	-9.07%	-9.93%	+0.86%
Average Drawdown Average peak-to-trough decline	-18.90%	-13.45%	-5.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.37%	3.88%	+2.49%

Volatility

GSK vs. NGG - Volatility Comparison

The current volatility for GlaxoSmithKline plc (GSK) is 7.26%, while National Grid plc (NGG) has a volatility of 7.98%. This indicates that GSK experiences smaller price fluctuations and is considered to be less risky than NGG based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GSK	NGG	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.26%	7.98%	-0.72%
Volatility (6M) Calculated over the trailing 6-month period	19.71%	13.20%	+6.51%
Volatility (1Y) Calculated over the trailing 1-year period	28.43%	22.50%	+5.93%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	24.74%	21.50%	+3.24%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.72%	22.85%	-0.13%

Financials

GSK vs. NGG - Profitability Comparison

The chart below illustrates the profitability comparison between GlaxoSmithKline plc and National Grid plc over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

GSK - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, GlaxoSmithKline plc reported a gross profit of 5.49B and revenue of 7.90B. Therefore, the gross margin over that period was 69.5%.

NGG - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, National Grid plc reported a gross profit of 1.61B and revenue of 7.05B. Therefore, the gross margin over that period was 22.9%.

GSK - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, GlaxoSmithKline plc reported an operating income of 179.89M and revenue of 7.90B, resulting in an operating margin of 2.3%.

NGG - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, National Grid plc reported an operating income of 1.61B and revenue of 7.05B, resulting in an operating margin of 22.9%.

GSK - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, GlaxoSmithKline plc reported a net income of 627.73M and revenue of 7.90B, resulting in a net margin of 7.9%.

NGG - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, National Grid plc reported a net income of 615.54M and revenue of 7.05B, resulting in a net margin of 8.7%.