American Electric [AEP] vs Southern Company [SO] Detailed Stock Comparison

TLDR: Quick Comparison Summary

Based on 21 vital metrics comparison: American Electric Power Company, Inc. wins in 15 metrics, Southern Company wins in 6 metrics, with 0 ties. American Electric Power Company, Inc. appears stronger overall.

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Vital Metrics Comparison

Metric American Electric Power Company, Inc. Southern Company Better
P/E Ratio (TTM) 20.28 23.96 American Electric Power Company, Inc.
Price-to-Book Ratio 2.35 2.92 American Electric Power Company, Inc.
Debt-to-Equity Ratio 154.24 190.59 American Electric Power Company, Inc.
PEG Ratio 19.66 19.10 Southern Company
EV/EBITDA 13.78 12.95 Southern Company
Profit Margin (TTM) 16.36% 14.69% American Electric Power Company, Inc.
Operating Margin (TTM) 22.84% 12.74% American Electric Power Company, Inc.
EBITDA Margin (TTM) 22.84% 12.74% American Electric Power Company, Inc.
Return on Equity 12.49% 11.04% American Electric Power Company, Inc.
Return on Assets (TTM) 3.17% 3.28% Southern Company
Free Cash Flow (TTM) $-1.64B $-2.94B American Electric Power Company, Inc.
Dividend Yield 4.02% 3.14% American Electric Power Company, Inc.
1-Year Return 25.59% 4.04% American Electric Power Company, Inc.
Price-to-Sales Ratio (TTM) 3.36 3.58 American Electric Power Company, Inc.
Enterprise Value $123.41B $180.41B Southern Company
EV/Revenue Ratio 5.64 6.11 American Electric Power Company, Inc.
Gross Profit Margin (TTM) 61.60% 39.97% American Electric Power Company, Inc.
Revenue per Share (TTM) $41 $27 American Electric Power Company, Inc.
Earnings per Share (Diluted) $6.66 $3.92 American Electric Power Company, Inc.
Beta (Stock Volatility) 0.57 0.41 Southern Company
Short % of Float 3.53% 2.41% Southern Company

American Electric Power Company, Inc. vs Southern Company Stock Performance Analysis

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Performance Comparison

Short-term Returns

Stock1D1W1M3M6MYTD
American Electric Power Company, Inc.-0.74%-2.43%-2.09%-1.14%10.84%14.10%
Southern Company-0.19%2.78%1.37%-5.34%9.09%7.62%

Long-term Returns

Stock1Y3Y5Y10Y15Y20Y
American Electric Power Company, Inc.25.59%52.16%56.93%92.28%243.33%278.31%
Southern Company4.04%30.99%52.97%83.77%136.12%189.14%

Performance & Financial Health Analysis: American Electric Power Company, Inc. vs Southern Company

MetricAEPSO
Market Information
Market Cap i$73.23B$105.39B
Market Cap CategoryLarge capLarge cap
10 Day Avg. Volume i2,436,1503,839,426
90 Day Avg. Volume i3,100,0404,787,199
Last Close$132.14$93.82
52 Week Range$105.02 - $140.58$83.80 - $100.84
% from 52W High-6.00%-6.96%
All-Time High$140.58 (Jul 07, 2026)$100.84 (Oct 16, 2025)
% from All-Time High-6.00%-6.96%
Growth Metrics
Quarterly Revenue Growth0.13%0.10%
Quarterly Earnings Growth-0.12%-0.22%
Financial Health
Profit Margin (TTM) i0.16%0.15%
Operating Margin (TTM) i0.23%0.13%
Return on Equity (TTM) i0.12%0.11%
Debt to Equity (MRQ) i154.24190.59
Cash & Liquidity
Book Value per Share (MRQ)$57.57$32.18
Cash per Share (MRQ)$0.77$1.46
Operating Cash Flow (TTM) i$6.94B$9.80B
Levered Free Cash Flow (TTM) i$-5,140,375,040$-3,460,124,928
Dividends
Last 12-Month Dividend Yield i4.02%3.14%
Last 12-Month Dividend i$4.69$2.96

Valuation & Enterprise Metrics Analysis: American Electric Power Company, Inc. vs Southern Company

MetricAEP (Apr 26, 2026)SO (Apr 26, 2026)
Price Ratios
P/E Ratio (TTM) i20.2823.96
Forward P/E i19.6619.10
PEG Ratio i19.6619.10
Price to Sales (TTM) i3.363.58
Price to Book (MRQ) i2.352.92
Market Capitalization
Market Capitalization i$73.23B$105.39B
Enterprise Value i$123.41B$180.41B
Enterprise Value Metrics
Enterprise to Revenue i5.646.11
Enterprise to EBITDA i13.7812.95
Risk & Other Metrics
Beta i0.570.41
Book Value per Share (MRQ) i$57.57$32.18

Financial Statements Comparison: American Electric Power Company, Inc. vs Southern Company

Financial Metrics

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Revenue

Operating Margin

Profit Margin

Long Term Debt

Income Flow Analysis

Financial Statements Comparison

Income Statement

MetricAEP (2025)SO (2025)
Revenue/Sales i21.88B29.55B
Cost of Goods Sold i8.53B15.23B
COGS % of Revenue i39.0%51.5%
Gross Profit i13.35B14.32B
Gross Margin i61.0%48.5%
Research & Development iN/AN/A
Operating Income (EBIT) i5.39B7.29B
Operating Margin i24.6%24.7%
EBITDA i9.06B13.93B
EBITDA Margin i41.4%47.1%
Pre-Tax Income i3.72B5.00B
Pre-Tax Income % of Revenue i17.0%16.9%
Income Tax i129.00M828.00M
Income Tax % of Revenue i0.6%2.8%
Net Income (Profit) i3.70B4.17B
Profit Margin i16.9%14.1%

Balance Sheet & Liquidity Metrics

MetricAEP (2025)SO (2025)
Cash & Equivalents i197.00M1.64B
Total Current Assets i6.05B10.92B
Total Current Assets % of Revenue i27.7%36.9%
Total Current Liabilities i13.31B16.89B
Total Current Liabilities % of Revenue i60.9%57.1%
Long-Term Debt i44.71B66.94B
Long-Term Debt % of Revenue i204.4%226.5%
Total Shareholders Equity i32.22B38.87B
Retained Earnings i15.44B14.86B
Retained Earnings % of Revenue i70.6%50.3%
Property, Plant & Equipment i9.30B2.97B

Cash Flow Statement Comparison

MetricAEP (2025)SO (2025)
Operating Cash Flow i6.96B10.04B
Operating Cash Flow % of Revenue i31.8%34.0%
Capital Expenditures i-130.00M-12.74B
Free Cash Flow i-1.64B-2.94B
FCF Margin i-7.5%-9.9%
Debt Repayment i-5.04B-5.88B
Common Stock Repurchase iN/AN/A

Short Interest & Institutional Ownership Analysis

MetricAEPSO
Shares Short i19.16M27.12M
Short Ratio i5.114.94
Short % of Float i3.53%2.41%
Shares Outstanding i540.86M1.12B
Float Shares i540.07M1.12B
% Held by Insiders i0.02%0.10%
% Held by Institutions i85.01%72.46%
% Held by Public i14.97%27.44%

Dividend Analysis & Yield Comparison: American Electric Power Company, Inc. vs Southern Company

MetricAEPSO
Last 12-Month Dividend i$4.69$2.96
Last 12-Month Dividend Yield i4.02%3.14%
3-Year Avg Annual Dividend i$3.88$2.88
3-Year Avg Dividend Yield i0.94%0.89%
3-Year Total Dividends i$11.63$8.64
Ex-Dividend DateFeb 10, 2026Feb 17, 2026