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 | 70.90 billion USD | 82.43 billion USD |
| Currency | USD | USD |
| Exchange | Nasdaq | NYSE |
| Listing Date | January 2, 1962 | August 10, 2005 |
| Security Type | Common Stock | ADR |
Performance
Cumulative Growth
Trailing Returns
Performance at a Glance
| Metric | AEP | NGG |
|---|---|---|
| Total Return (1Y) | 32.11% | 17.71% |
Risk
Drawdown
Risk at a Glance
| Metric | AEP | NGG |
|---|---|---|
| Volatility (1Y, Annualized) | 18.41% | 21.54% |
| Beta (5Y) | 0.52 | 0.77 |
| Avg. Volume (3M) | 4.06M | 1.27M |
Profitability
ROE (TTM)
American Electric Power (AEP) at 12.59% sits in the top ROE quartile, while National Grid (NGG) at 8.41% is closer to the peer norm — stronger capital efficiency for AEP.
AEP
Utilities industry group
12.59%
- Max
- 16.11%
- AEP
- 12.59%
- Q3
- 11.15%
- Median
- 9.46%
- Q1
- 7.50%
- Min
- 2.67%
NGG
Utilities industry group
8.41%
- Max
- 16.11%
- Q3
- 11.15%
- Median
- 9.46%
- NGG
- 8.41%
- Q1
- 7.50%
- 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 16.29%, which keeps about the industry-typical share.
AEP
Utilities industry group
16.29%
- Max
- 29.37%
- Q3
- 17.31%
- AEP
- 16.29%
- Median
- 12.55%
- Q1
- 9.24%
- Min
- -0.65%
NGG
Utilities industry group
18.32%
- Max
- 29.37%
- NGG
- 18.32%
- Q3
- 17.31%
- Median
- 12.55%
- Q1
- 9.24%
- Min
- -0.65%
Operating Margin (TTM)
National Grid (NGG) at 32.60% operates in the top operating margin quartile, ahead of American Electric Power (AEP) at 23.74%, which runs around its industry’s norm.
AEP
Utilities industry group
23.74%
- Max
- 43.52%
- Q3
- 30.09%
- AEP
- 23.74%
- Median
- 23.50%
- Q1
- 16.61%
- Min
- 0.00%
NGG
Utilities industry group
32.60%
- Max
- 43.52%
- NGG
- 32.60%
- Q3
- 30.09%
- Median
- 23.50%
- Q1
- 16.61%
- Min
- 0.00%
Profitability at a Glance
| Metric | AEP | NGG |
|---|---|---|
| ROE (TTM) | 12.59% | 8.41% |
| ROA (TTM) | 3.17% | 3.01% |
| Net Margin (TTM) | 16.29% | 18.32% |
| Operating Margin (TTM) | 23.74% | 32.60% |
| Gross Margin (TTM) | 47.24% | 100.00% |
Growth
Revenue Growth
Revenue Growth at a Glance
| Metric | AEP | NGG |
|---|---|---|
| Revenue Growth (YoY) | 10.93% | -3.76% |
| Revenue Growth (3Y CAGR) | 3.66% | -6.53% |
EPS Growth
EPS Growth at a Glance
| Metric | AEP | NGG |
|---|---|---|
| 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 0.53 runs in the tighter-liquidity quartile — a thinner cushion against current liabilities for AEP.
AEP
Utilities industry group
0.53
- Max
- 1.88
- Q3
- 1.16
- Median
- 0.90
- Q1
- 0.65
- AEP
- 0.53
- Min
- 0.33
NGG
Utilities industry group
0.76
- Max
- 1.88
- Q3
- 1.16
- Median
- 0.90
- NGG
- 0.76
- Q1
- 0.65
- Min
- 0.33
Debt / Equity (MRQ)
Both American Electric Power (AEP) at 1.57 and National Grid (NGG) at 1.21 fund their balance sheets with roughly industry-typical debt-to-equity mixes.
AEP
Utilities industry group
1.57
- Max
- 3.02
- Q3
- 1.81
- AEP
- 1.57
- Median
- 1.34
- Q1
- 0.85
- Min
- 0.00
NGG
Utilities industry group
1.21
- Max
- 3.02
- Q3
- 1.81
- Median
- 1.34
- NGG
- 1.21
- Q1
- 0.85
- Min
- 0.00
Financial Strength at a Glance
| Metric | AEP | NGG |
|---|---|---|
| Current Ratio (MRQ) | 0.53 | 0.76 |
| Debt / Equity (MRQ) | 1.57 | 1.21 |
| Net Debt / EBITDA | 5.61 | 6.39 |
Dividends
Dividend Yield (TTM)
American Electric Power (AEP) at 2.94% pays a yield in its industry’s typical range, while National Grid (NGG) at 0.59% falls in the bottom quartile of its peers.
AEP
Utilities industry group
2.94%
- Max
- 6.04%
- Q3
- 3.84%
- Median
- 2.98%
- AEP
- 2.94%
- Q1
- 1.88%
- Min
- 0.00%
NGG
Utilities industry group
0.59%
- Max
- 6.04%
- Q3
- 3.84%
- Median
- 2.98%
- Q1
- 1.88%
- NGG
- 0.59%
- Min
- 0.00%
Dividend Payout Ratio (TTM)
Both American Electric Power (AEP) at 55.62% and National Grid (NGG) at 71.18% keep payout ratio within their industries’ typical mid-ranges — dividend policies that share earnings without consuming too much of them.
AEP
Utilities industry group
55.62%
- Max
- 116.67%
- Q3
- 73.40%
- Median
- 58.69%
- AEP
- 55.62%
- Q1
- 36.87%
- Min
- 0.00%
NGG
Utilities industry group
71.18%
- Max
- 116.67%
- Q3
- 73.40%
- NGG
- 71.18%
- Median
- 58.69%
- Q1
- 36.87%
- Min
- 0.00%
Dividends at a Glance
| Metric | AEP | NGG |
|---|---|---|
| Dividend Yield (TTM) | 2.94% | 0.59% |
| Dividend Payout Ratio (TTM) | 55.62% | 71.18% |
Valuation
P/E Ratio (TTM)
Both American Electric Power (AEP) at 19.28 and National Grid (NGG) at 19.09 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
19.28
- Max
- 31.16
- Q3
- 23.44
- Median
- 19.73
- AEP
- 19.28
- Q1
- 15.82
- Min
- 4.91
NGG
Utilities industry group
19.09
- Max
- 31.16
- Q3
- 23.44
- Median
- 19.73
- NGG
- 19.09
- Q1
- 15.82
- Min
- 4.91
P/S Ratio (TTM)
American Electric Power (AEP) at 3.16 is priced about in line with its industry on P/S ratio, while National Grid (NGG) at 4.66 sits in the pricier quartile — NGG costs more per dollar of sales.
AEP
Utilities industry group
3.16
- Max
- 6.04
- Q3
- 3.54
- AEP
- 3.16
- Median
- 2.65
- Q1
- 1.61
- Min
- 0.00
NGG
Utilities industry group
4.66
- Max
- 6.04
- NGG
- 4.66
- Q3
- 3.54
- Median
- 2.65
- Q1
- 1.61
- Min
- 0.00
P/B Ratio (MRQ)
American Electric Power (AEP) at 2.23 sits near its industry’s typical P/B ratio, while National Grid (NGG) at 8.28 prices above its benchmark range — NGG looks rich relative to book.
AEP
Utilities industry group
2.23
- Max
- 3.85
- Q3
- 2.41
- AEP
- 2.23
- Median
- 1.89
- Q1
- 1.41
- Min
- 0.34
NGG
Utilities industry group
8.28
- NGG
- 8.28
- Max
- 3.85
- Q3
- 2.41
- Median
- 1.89
- Q1
- 1.41
- Min
- 0.34
Valuation at a Glance
| Metric | AEP | NGG |
|---|---|---|
| P/E Ratio (TTM) | 19.28 | 19.09 |
| P/S Ratio (TTM) | 3.16 | 4.66 |
| P/B Ratio (MRQ) | 2.23 | 8.28 |
| Free Cash Flow Yield (TTM) | -9.81% | -3.79% |