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NGG vs. NI: National Grid vs. NiSource Stock Comparison

How do National Grid (NGG) and NiSource (NI) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

National Grid (NGG) and NiSource (NI) are both classified in the Multi-Utilities sub-industry within the broader Multi-Utilities industry, placing them in the closest GICS peer bucket.

NiSource (NI) trades as ordinary local shares, while National Grid (NGG) trades as an ADR — compare with FX exposure, depositary-program fees, and dividend-withholding-tax differences in mind.

Company profile comparison for National Grid (NGG) and NiSource (NI)
Profile ItemNGGNI
NameNational Grid plc Sponsored ADRNiSource Inc.
Country/RegionUnited KingdomUnited States
GICS SectorUtilitiesUtilities
GICS Industry GroupUtilitiesUtilities
GICS IndustryMulti-UtilitiesMulti-Utilities
GICS Sub-IndustryMulti-UtilitiesMulti-Utilities
Market Capitalization83.60 billion USD21.18 billion USD
CurrencyUSDUSD
ExchangeNYSENYSE
Listing DateAugust 10, 2005February 21, 1973
Security TypeADRCommon Stock

Price Performance

Cumulative Growth

NGG
NI
GSPC
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National Grid (NGG) vs. NiSource (NI), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for National Grid (NGG) and NiSource (NI). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for National Grid (NGG) and NiSource (NI). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for National Grid (NGG) and NiSource (NI)
MetricNGGNI
Total Return (1Y)13.00%6.11%
Total Return (3Y, Annualized)19.82%25.66%
Total Return (5Y, Annualized)12.34%16.11%

Risk Profile

Drawdown History

NGG
NI
GSPC
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National Grid (NGG) vs. NiSource (NI), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for National Grid (NGG) and NiSource (NI). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for National Grid (NGG) and NiSource (NI)
MetricNGGNI
Volatility (1Y, Annualized)22.32%18.23%
Beta (5Y)0.730.53
Max Drawdown (5Y)-39.20%-24.76%
Avg. Volume (3M)911.70K5.64M

Risk-Adjusted Performance

Risk-Return Positioning

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NGG and NI are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for National Grid (NGG) and NiSource (NI)
MetricNGGNI
Sharpe Ratio (1Y)0.390.10
Sortino Ratio (1Y)0.540.14

Profitability

ROE (TTM)

Both National Grid (NGG) at 10.31% and NiSource (NI) at 8.71% land near their industries’ usual ROE ranges, so capital efficiency looks broadly in line with peers on both sides.

NGG

Utilities industry group

10.31%

Max
17.99%
Q3
12.01%
NGG
10.31%
Median
9.44%
Q1
7.56%
Min
2.17%

NI

Utilities industry group

8.71%

Max
17.99%
Q3
12.01%
Median
9.44%
NI
8.71%
Q1
7.56%
Min
2.17%
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National Grid (NGG) vs. NiSource (NI): A comparison of their ROE against the Utilities industry group benchmark.

Net Margin (TTM)

National Grid (NGG) at 21.15% retains a top-quartile share of revenue as profit, ahead of NiSource (NI) at 13.51%, which keeps about the industry-typical share.

NGG

Utilities industry group

21.15%

Max
28.78%
NGG
21.15%
Q3
17.30%
Median
12.73%
Q1
9.18%
Min
-0.20%

NI

Utilities industry group

13.51%

Max
28.78%
Q3
17.30%
NI
13.51%
Median
12.73%
Q1
9.18%
Min
-0.20%
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National Grid (NGG) vs. NiSource (NI): A comparison of their net margin against the Utilities industry group benchmark.

Operating Margin (TTM)

Both National Grid (NGG) at 28.64% and NiSource (NI) at 25.20% run core operations about as efficiently as their industries’ norm — neither stands out on operating profitability.

NGG

Utilities industry group

28.64%

Max
53.83%
Q3
31.12%
NGG
28.64%
Median
23.62%
Q1
15.45%
Min
-4.90%

NI

Utilities industry group

25.20%

Max
53.83%
Q3
31.12%
NI
25.20%
Median
23.62%
Q1
15.45%
Min
-4.90%
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National Grid (NGG) vs. NiSource (NI): A comparison of their operating margin against the Utilities industry group benchmark.

Profitability Metrics

Profitability metrics for National Grid (NGG) and NiSource (NI)
MetricNGGNI
ROE (TTM)10.31%8.71%
ROA (TTM)3.33%3.25%
Net Margin (TTM)21.15%13.51%
Operating Margin (TTM)28.64%25.20%
Gross Margin (TTM)100.00%50.92%

Growth

Revenue Growth

NiSource (NI) at 21.76% sits in the top revenue growth quartile, while National Grid (NGG) at -3.76% is in the bottom quartile, showing a clear gap in revenue momentum.

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National Grid (NGG) vs. NiSource (NI): A comparison of their Revenue Growth across different time periods.

EPS Growth

Only one side can be read here: NiSource (NI) reports EPS growth of 20.37%, ranked against its industry; National Grid (NGG) has no EPS growth figure this period.

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National Grid (NGG) vs. NiSource (NI): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for National Grid (NGG) and NiSource (NI)
MetricNGGNI
Revenue Growth (YoY)-3.76%21.76%
Revenue Growth (3Y CAGR)-6.53%4.32%
EPS Growth (YoY)--20.37%
EPS Growth (3Y CAGR)-30.59%4.68%

Financial Strength

Current Ratio (MRQ)

Both National Grid (NGG) at 0.62 and NiSource (NI) at 0.50 run current ratio in the tighter-liquidity quartile of industry peers, leaving thinner cushions against current liabilities than typical competitors.

NGG

Utilities industry group

0.62

Max
1.90
Q3
1.17
Median
0.88
Q1
0.66
NGG
0.62
Min
0.29

NI

Utilities industry group

0.50

Max
1.90
Q3
1.17
Median
0.88
Q1
0.66
NI
0.50
Min
0.29
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National Grid (NGG) vs. NiSource (NI): A comparison of their current ratio against the Utilities industry group benchmark.

Debt / Equity (MRQ)

Both National Grid (NGG) at 1.32 and NiSource (NI) at 1.53 fund their balance sheets with roughly industry-typical debt-to-equity mixes.

NGG

Utilities industry group

1.32

Max
2.63
Q3
1.77
Median
1.35
NGG
1.32
Q1
0.84
Min
0.00

NI

Utilities industry group

1.53

Max
2.63
Q3
1.77
NI
1.53
Median
1.35
Q1
0.84
Min
0.00
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National Grid (NGG) vs. NiSource (NI): A comparison of their debt-to-equity ratio against the Utilities industry group benchmark.

Financial Strength Metrics

Financial strength metrics for National Grid (NGG) and NiSource (NI)
MetricNGGNI
Current Ratio (MRQ)0.620.50
Debt / Equity (MRQ)1.321.53
Net Debt / EBITDA6.325.87

Dividends

Dividend Yield (TTM)

NiSource (NI) at 0.68% pays a yield in its industry’s typical range, while National Grid (NGG) at 0.57% falls in the bottom quartile of its peers.

NGG

Utilities industry group

0.57%

Max
6.66%
Q3
3.58%
Median
2.85%
Q1
0.66%
NGG
0.57%
Min
0.00%

NI

Utilities industry group

0.68%

Max
6.66%
Q3
3.58%
Median
2.85%
NI
0.68%
Q1
0.66%
Min
0.00%
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National Grid (NGG) vs. NiSource (NI): A comparison of their dividend yield against the Utilities industry group benchmark.

Dividend Payout Ratio (TTM)

NiSource (NI) at 60.51% pays out a band-typical share of earnings, while National Grid (NGG) at 71.97% distributes more than its industry norm — less retained, thinner cover.

NGG

Utilities industry group

71.97%

Max
113.04%
NGG
71.97%
Q3
68.72%
Median
56.38%
Q1
32.38%
Min
0.00%

NI

Utilities industry group

60.51%

Max
113.04%
Q3
68.72%
NI
60.51%
Median
56.38%
Q1
32.38%
Min
0.00%
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National Grid (NGG) vs. NiSource (NI): A comparison of their payout ratio against the Utilities industry group benchmark.

Dividend Metrics

Dividend metrics for National Grid (NGG) and NiSource (NI)
MetricNGGNI
Dividend Yield (TTM)0.57%0.68%
Dividend Payout Ratio (TTM)71.97%60.51%

Valuation

P/E Ratio (TTM)

Both National Grid (NGG) at 15.54 and NiSource (NI) at 22.64 land around their industries’ usual P/E ratio levels — neither is getting a clear earnings-multiple discount or premium versus peers.

NGG

Utilities industry group

15.54

Max
31.22
Q3
23.30
Median
19.64
NGG
15.54
Q1
15.17
Min
3.34

NI

Utilities industry group

22.64

Max
31.22
Q3
23.30
NI
22.64
Median
19.64
Q1
15.17
Min
3.34
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National Grid (NGG) vs. NiSource (NI): A comparison of their P/E ratio against the Utilities industry group benchmark.

P/S Ratio (TTM)

NiSource (NI) at 3.04 is priced about in line with its industry on P/S ratio, while National Grid (NGG) at 4.46 sits in the pricier quartile — NGG costs more per dollar of sales.

NGG

Utilities industry group

4.46

Max
6.35
NGG
4.46
Q3
3.63
Median
2.63
Q1
1.52
Min
0.00

NI

Utilities industry group

3.04

Max
6.35
Q3
3.63
NI
3.04
Median
2.63
Q1
1.52
Min
0.00
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National Grid (NGG) vs. NiSource (NI): A comparison of their P/S ratio against the Utilities industry group benchmark.

P/B Ratio (MRQ)

NiSource (NI) at 2.21 sits near its industry’s typical P/B ratio, while National Grid (NGG) at 9.36 prices above its benchmark range — NGG looks rich relative to book.

NGG

Utilities industry group

9.36

NGG
9.36
Max
3.12
Q3
2.21
Median
1.83
Q1
1.46
Min
0.34

NI

Utilities industry group

2.21

Max
3.12
Q3
2.21
NI
2.21
Median
1.83
Q1
1.46
Min
0.34
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National Grid (NGG) vs. NiSource (NI): A comparison of their P/B ratio against the Utilities industry group benchmark.

Valuation Metrics

Valuation metrics for National Grid (NGG) and NiSource (NI)
MetricNGGNI
P/E Ratio (TTM)15.5422.64
P/S Ratio (TTM)4.463.04
P/B Ratio (MRQ)9.362.21
Free Cash Flow Yield (TTM)-5.94%-10.51%