AEP vs. NGG: American Electric Power vs. National Grid Stock Comparison
How do American Electric Power (AEP) and National Grid (NGG) 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
American Electric Power (AEP) and National Grid (NGG) both fall under the Utilities industry group, but AEP is classified in Electric Utilities while NGG is classified in Multi-Utilities.
American Electric Power (AEP) 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.
| Profile Item | AEP | NGG |
|---|---|---|
| Name | American Electric Power Company, Inc. | National Grid plc Sponsored ADR |
| Country/Region | United States | United Kingdom |
| GICS Sector | Utilities | Utilities |
| GICS Industry Group | Utilities | Utilities |
| GICS Industry | Electric Utilities | Multi-Utilities |
| GICS Sub-Industry | Electric Utilities | Multi-Utilities |
| Market Capitalization | 68.45 billion USD | 81.31 billion USD |
| Currency | USD | USD |
| Exchange | Nasdaq | NYSE |
| Listing Date | January 2, 1962 | August 10, 2005 |
| Security Type | Common Stock | ADR |
Price Performance
Cumulative Growth
Trailing Returns
Calendar-Year Returns
Performance Metrics
| Metric | AEP | NGG |
|---|---|---|
| Total Return (1Y) | 14.05% | 16.80% |
| Total Return (3Y, Annualized) | 20.21% | 16.85% |
| Total Return (5Y, Annualized) | 11.01% | 10.99% |
Risk Profile
Drawdown History
Return Distribution
Risk Metrics
| Metric | AEP | NGG |
|---|---|---|
| Volatility (1Y, Annualized) | 18.85% | 21.40% |
| Beta (5Y) | 0.51 | 0.78 |
| Max Drawdown (5Y) | -29.56% | -39.20% |
| Avg. Volume (3M) | 5.12M | 1.25M |
Risk-Adjusted Performance
Risk-Return Positioning
Risk-Adjusted Metrics
| Metric | AEP | NGG |
|---|---|---|
| Sharpe Ratio (1Y) | 0.53 | 0.60 |
| Sortino Ratio (1Y) | 0.82 | 0.81 |
Profitability
ROE (TTM)
Both American Electric Power (AEP) at 10.13% and National Grid (NGG) at 8.41% land near their industries’ usual ROE ranges, so capital efficiency looks broadly in line with peers on both sides.
AEP
Utilities industry group
10.13%
- Max
- 17.16%
- Q3
- 11.86%
- AEP
- 10.13%
- Median
- 9.59%
- Q1
- 8.06%
- Min
- 2.67%
NGG
Utilities industry group
8.41%
- Max
- 17.16%
- Q3
- 11.86%
- Median
- 9.59%
- NGG
- 8.41%
- Q1
- 8.06%
- Min
- 2.67%
Net Margin (TTM)
National Grid (NGG) at 18.32% retains a top-quartile share of revenue as profit, ahead of American Electric Power (AEP) at 13.78%, which keeps about the industry-typical share.
AEP
Utilities industry group
13.78%
- Max
- 27.58%
- Q3
- 16.76%
- AEP
- 13.78%
- Median
- 12.82%
- Q1
- 9.34%
- Min
- -1.02%
NGG
Utilities industry group
18.32%
- Max
- 27.58%
- NGG
- 18.32%
- Q3
- 16.76%
- Median
- 12.82%
- Q1
- 9.34%
- Min
- -1.02%
Operating Margin (TTM)
National Grid (NGG) at 32.60% operates in the top operating margin quartile, ahead of American Electric Power (AEP) at 23.25%, which runs around its industry’s norm.
AEP
Utilities industry group
23.25%
- Max
- 45.14%
- Q3
- 28.18%
- AEP
- 23.25%
- Median
- 22.70%
- Q1
- 14.52%
- Min
- -5.75%
NGG
Utilities industry group
32.60%
- Max
- 45.14%
- NGG
- 32.60%
- Q3
- 28.18%
- Median
- 22.70%
- Q1
- 14.52%
- Min
- -5.75%
Profitability Metrics
| Metric | AEP | NGG |
|---|---|---|
| ROE (TTM) | 10.13% | 8.41% |
| ROA (TTM) | 2.98% | 3.01% |
| Net Margin (TTM) | 13.78% | 18.32% |
| Operating Margin (TTM) | 23.25% | 32.60% |
| Gross Margin (TTM) | 46.35% | 100.00% |
Growth
Revenue Growth
American Electric Power (AEP) at 10.93% is around its peer norm for revenue growth, while National Grid (NGG) at -3.76% drops into the bottom quartile, signaling weaker demand or pricing momentum.
EPS Growth
Only one side can be read here: American Electric Power (AEP) reports EPS growth of 19.35%, ranked against its industry; National Grid (NGG) has no EPS growth figure this period.
Growth Metrics
| Metric | AEP | NGG |
|---|---|---|
| Revenue Growth (YoY) | 10.93% | -3.76% |
| Revenue Growth (3Y CAGR) | 3.66% | -6.53% |
| EPS Growth (YoY) | 19.35% | -- |
| EPS Growth (3Y CAGR) | 14.04% | -30.59% |
Financial Strength
Current Ratio (MRQ)
National Grid (NGG) at 0.76 keeps current ratio within its industry’s typical mid-range, while American Electric Power (AEP) at 0.50 runs in the tighter-liquidity quartile — a thinner cushion against current liabilities for AEP.
AEP
Utilities industry group
0.50
- Max
- 1.74
- Q3
- 1.12
- Median
- 0.90
- Q1
- 0.66
- AEP
- 0.50
- Min
- 0.36
NGG
Utilities industry group
0.76
- Max
- 1.74
- Q3
- 1.12
- Median
- 0.90
- NGG
- 0.76
- Q1
- 0.66
- Min
- 0.36
Debt / Equity (MRQ)
Both American Electric Power (AEP) at 1.61 and National Grid (NGG) at 1.21 fund their balance sheets with roughly industry-typical debt-to-equity mixes.
AEP
Utilities industry group
1.61
- Max
- 2.62
- Q3
- 1.79
- AEP
- 1.61
- Median
- 1.33
- Q1
- 0.83
- Min
- 0.00
NGG
Utilities industry group
1.21
- Max
- 2.62
- Q3
- 1.79
- Median
- 1.33
- NGG
- 1.21
- Q1
- 0.83
- Min
- 0.00
Financial Strength Metrics
| Metric | AEP | NGG |
|---|---|---|
| Current Ratio (MRQ) | 0.50 | 0.76 |
| Debt / Equity (MRQ) | 1.61 | 1.21 |
| Net Debt / EBITDA | 5.86 | 6.39 |
Dividends
Dividend Yield (TTM)
Both American Electric Power (AEP) at 3.02% and National Grid (NGG) at 0.60% pay solid, industry-typical yields, sitting squarely within their peers’ usual range.
AEP
Utilities industry group
3.02%
- Max
- 5.65%
- Q3
- 3.62%
- AEP
- 3.02%
- Median
- 2.70%
- Q1
- 0.53%
- Min
- 0.00%
NGG
Utilities industry group
0.60%
- Max
- 5.65%
- Q3
- 3.62%
- Median
- 2.70%
- NGG
- 0.60%
- Q1
- 0.53%
- Min
- 0.00%
Dividend Payout Ratio (TTM)
American Electric Power (AEP) at 65.51% pays out a band-typical share of earnings, while National Grid (NGG) at 71.18% distributes more than its industry norm — less retained, thinner cover.
AEP
Utilities industry group
65.51%
- Max
- 108.09%
- Q3
- 71.06%
- AEP
- 65.51%
- Median
- 58.19%
- Q1
- 39.84%
- Min
- 0.00%
NGG
Utilities industry group
71.18%
- Max
- 108.09%
- NGG
- 71.18%
- Q3
- 71.06%
- Median
- 58.19%
- Q1
- 39.84%
- Min
- 0.00%
Dividend Metrics
| Metric | AEP | NGG |
|---|---|---|
| Dividend Yield (TTM) | 3.02% | 0.60% |
| Dividend Payout Ratio (TTM) | 65.51% | 71.18% |
Valuation
P/E Ratio (TTM)
Both American Electric Power (AEP) at 21.68 and National Grid (NGG) at 18.26 land around their industries’ usual P/E ratio levels — neither is getting a clear earnings-multiple discount or premium versus peers.
AEP
Utilities industry group
21.68
- Max
- 31.48
- Q3
- 23.08
- AEP
- 21.68
- Median
- 20.48
- Q1
- 15.42
- Min
- 5.14
NGG
Utilities industry group
18.26
- Max
- 31.48
- Q3
- 23.08
- Median
- 20.48
- NGG
- 18.26
- Q1
- 15.42
- Min
- 5.14
P/S Ratio (TTM)
American Electric Power (AEP) at 3.00 is priced about in line with its industry on P/S ratio, while National Grid (NGG) at 4.60 sits in the pricier quartile — NGG costs more per dollar of sales.
AEP
Utilities industry group
3.00
- Max
- 6.17
- Q3
- 3.51
- AEP
- 3.00
- Median
- 2.57
- Q1
- 1.63
- Min
- 0.00
NGG
Utilities industry group
4.60
- Max
- 6.17
- NGG
- 4.60
- Q3
- 3.51
- Median
- 2.57
- Q1
- 1.63
- Min
- 0.00
P/B Ratio (MRQ)
American Electric Power (AEP) at 2.13 sits near its industry’s typical P/B ratio, while National Grid (NGG) at 9.14 prices above its benchmark range — NGG looks rich relative to book.
AEP
Utilities industry group
2.13
- Max
- 3.38
- Q3
- 2.30
- AEP
- 2.13
- Median
- 1.88
- Q1
- 1.43
- Min
- 0.34
NGG
Utilities industry group
9.14
- NGG
- 9.14
- Max
- 3.38
- Q3
- 2.30
- Median
- 1.88
- Q1
- 1.43
- Min
- 0.34
Valuation Metrics
| Metric | AEP | NGG |
|---|---|---|
| P/E Ratio (TTM) | 21.68 | 18.26 |
| P/S Ratio (TTM) | 3.00 | 4.60 |
| P/B Ratio (MRQ) | 2.13 | 9.14 |
| Free Cash Flow Yield (TTM) | -8.76% | -3.84% |