NGG vs. AWK
NGG (National Grid plc) and AWK (American Water Works Company, Inc.) are both stocks. Both are in the Utilities sector — NGG in Utilities - Regulated Electric, AWK in Utilities - Regulated Water. Over the past 10 years, NGG returned 7.12%/yr vs 6.94%/yr for AWK. At a 0.42 correlation, their price movements are largely independent.
Performance
NGG vs. AWK - Performance Comparison
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Returns By Period
In the year-to-date period, NGG achieves a 9.58% return, which is significantly higher than AWK's 1.55% return. Both investments have delivered pretty close results over the past 10 years, with NGG having a 7.12% annualized return and AWK not far behind at 6.94%.
NGG
- 1D
- 0.33%
- 1M
- 0.92%
- 6M
- 5.79%
- YTD
- 9.58%
- 1Y
- 22.48%
- 3Y*
- 16.02%
- 5Y*
- 11.31%
- 10Y*
- 7.12%
AWK
- 1D
- 0.11%
- 1M
- 3.47%
- 6M
- 3.54%
- YTD
- 1.55%
- 1Y
- -5.73%
- 3Y*
- -0.51%
- 5Y*
- -2.21%
- 10Y*
- 6.94%
NGG vs. AWK - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
NGG National Grid plc | 9.58% | 35.88% | -1.26% | 18.82% | -12.68% | 29.02% | -0.75% | 38.53% | -13.76% | 4.94% |
AWK American Water Works Company, Inc. | 1.55% | 7.40% | -3.53% | -11.68% | -17.89% | 24.83% | 26.88% | 37.79% | 1.32% | 29.01% |
Correlation
The correlation between NGG and AWK is 0.34, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.34 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.45 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.47 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.48 |
Correlation (All Time) Calculated using the full available price history since Apr 23, 2008 | 0.42 |
The correlation between NGG and AWK shifts across timeframes, from 0.34 (1 year) to 0.48 (10 years), reflecting how their relationship changes across market environments.
Fundamentals
NGG:
$82.19B
AWK:
$25.52B
NGG:
£6.16
AWK:
$5.65
NGG:
9.98
AWK:
23.13
NGG:
1.71
AWK:
4.90
NGG:
1.56
AWK:
2.31
NGG:
£35.68B
AWK:
$5.21B
NGG:
£10.47B
AWK:
$2.27B
NGG:
£15.03B
AWK:
$2.48B
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Return for Risk
NGG vs. AWK — Risk / Return Rank
NGG
AWK
NGG vs. AWK - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for National Grid plc (NGG) and American Water Works Company, Inc. (AWK). 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.
| NGG | AWK | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.29 | ||
| Sortino ratioReturn per unit of downside risk | +1.65 | ||
| Omega ratioGain probability vs. loss probability | 1.19 | 0.97 | +0.22 |
| Calmar ratioReturn relative to maximum drawdown | 1.54 | -0.39 | +1.93 |
| Martin ratioReturn relative to average drawdown | 3.78 | -0.69 | +4.46 |
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Drawdowns
NGG vs. AWK - Drawdown Comparison
The maximum NGG drawdown since its inception was -54.85%, which is greater than AWK's maximum drawdown of -37.10%. Use the drawdown chart below to compare losses from any high point for NGG and AWK.
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Drawdown Indicators
| NGG | AWK | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -54.85% | -37.10% | -17.75% |
Max Drawdown (1Y)Largest decline over 1 year | -14.15% | -15.45% | +1.30% |
Max Drawdown (3Y)Largest decline over 3 years | -20.76% | -22.24% | +1.48% |
Max Drawdown (5Y)Largest decline over 5 years | -39.20% | -37.10% | -2.10% |
Max Drawdown (10Y)Largest decline over 10 years | -39.20% | -37.10% | -2.10% |
Current DrawdownCurrent decline from peak | -9.76% | -23.70% | +13.94% |
Average DrawdownAverage peak-to-trough decline | -13.39% | -9.57% | -3.82% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.76% | 8.73% | -2.97% |
Volatility
NGG vs. AWK - Volatility Comparison
The current volatility for National Grid plc (NGG) is 6.77%, while American Water Works Company, Inc. (AWK) has a volatility of 7.53%. This indicates that NGG experiences smaller price fluctuations and is considered to be less risky than AWK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| NGG | AWK | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.77% | 7.53% | -0.76% |
Volatility (6M)Calculated over the trailing 6-month period | 18.14% | 16.50% | +1.64% |
Volatility (1Y)Calculated over the trailing 1-year period | 21.32% | 22.27% | -0.95% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 22.24% | 22.96% | -0.72% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.98% | 23.78% | -0.80% |
Dividends
NGG vs. AWK - Dividend Comparison
NGG's dividend yield for the trailing twelve months is around 3.92%, more than AWK's 2.58% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AWK American Water Works Company, Inc. | 2.58% | 2.49% | 2.41% | 2.10% | 1.68% | 1.25% | 1.40% | 1.59% | 1.96% | 1.77% | 2.02% | 2.23% |
NGG National Grid plc | 3.92% | 4.03% | 11.81% | 5.20% | 5.18% | 4.75% | 5.32% | 4.94% | 6.51% | 14.95% | 5.07% | 4.73% |
Financials
NGG vs. AWK - Financials Comparison
This section allows you to compare key financial metrics between National Grid plc and American Water Works Company, Inc.. 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
NGG vs. AWK - Profitability Comparison
NGG - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 2026, National Grid plc reported a gross profit of 4.21B and revenue of 10.78B. Therefore, the gross margin over that period was 39.0%.
AWK - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 2026, American Water Works Company, Inc. reported a gross profit of 714.00M and revenue of 1.21B. Therefore, the gross margin over that period was 59.2%.
NGG - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, National Grid plc reported an operating income of 4.21B and revenue of 10.78B, resulting in an operating margin of 39.0%.
AWK - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, American Water Works Company, Inc. reported an operating income of 391.00M and revenue of 1.21B, resulting in an operating margin of 32.4%.
NGG - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jul 2026, National Grid plc reported a net income of 2.66B and revenue of 10.78B, resulting in a net margin of 24.7%.
AWK - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jul 2026, American Water Works Company, Inc. reported a net income of 196.00M and revenue of 1.21B, resulting in a net margin of 16.2%.
Frequently Asked Questions
NGG and AWK have a correlation of 0.34, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AWK has higher volatility (7.53%) compared to NGG (6.77%). In terms of maximum drawdown, NGG dropped -54.85% vs AWK's -37.10%.
NGG currently has the higher Sharpe Ratio (1.02 vs -0.27), 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.
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