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Side-by-side financial comparison of American Electric Power (AEP) and KLA Corporation (KLAC). Click either name above to swap in a different company.

American Electric Power is the larger business by last-quarter revenue ($5.1B vs $3.3B, roughly 1.5× KLA Corporation). KLA Corporation runs the higher net margin — 34.7% vs 12.0%, a 22.8% gap on every dollar of revenue. On growth, KLA Corporation posted the faster year-over-year revenue change (7.2% vs 6.2%). Over the past eight quarters, KLA Corporation's revenue compounded faster (18.2% CAGR vs -0.3%).

American Electric Power Company, Inc., an electric public utility holding company, engages in the generation, transmission, and distribution of electricity for sale to retail and wholesale customers in the United States. It operates through Vertically Integrated Utilities, Transmission and Distribution Utilities, AEP Transmission Holdco, and Generation & Marketing segments. The company generates electricity using coal and lignite, natural gas, nuclear, hydro, solar, wind, and other energy sou...

KLA Corporation is an American company based in Milpitas, California that makes wafer fab equipment. It supplies process control and yield management systems for the semiconductor industry and other related nanoelectronics industries. The company's products and services are intended for all phases of wafer, reticle, integrated circuit (IC) and packaging production, from research and development to final volume manufacturing.

AEP vs KLAC — Head-to-Head

Bigger by revenue
AEP
AEP
1.5× larger
AEP
$5.1B
$3.3B
KLAC
Growing faster (revenue YoY)
KLAC
KLAC
+0.9% gap
KLAC
7.2%
6.2%
AEP
Higher net margin
KLAC
KLAC
22.8% more per $
KLAC
34.7%
12.0%
AEP
Faster 2-yr revenue CAGR
KLAC
KLAC
Annualised
KLAC
18.2%
-0.3%
AEP

Income Statement — Q4 FY2025 vs Q2 FY2026

Metric
AEP
AEP
KLAC
KLAC
Revenue
$5.1B
$3.3B
Net Profit
$605.2M
$1.1B
Gross Margin
61.4%
Operating Margin
22.1%
Net Margin
12.0%
34.7%
Revenue YoY
6.2%
7.2%
Net Profit YoY
-9.1%
39.0%
EPS (diluted)
$1.06
$8.68

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
AEP
AEP
KLAC
KLAC
Q4 25
$5.1B
$3.3B
Q3 25
$6.0B
$3.2B
Q2 25
$5.1B
$3.2B
Q1 25
$5.6B
$3.1B
Q4 24
$4.8B
$3.1B
Q3 24
$5.5B
$2.8B
Q2 24
$4.7B
$2.6B
Q1 24
$5.1B
$2.4B
Net Profit
AEP
AEP
KLAC
KLAC
Q4 25
$605.2M
$1.1B
Q3 25
$1.0B
$1.1B
Q2 25
$1.3B
$1.2B
Q1 25
$802.2M
$1.1B
Q4 24
$665.9M
$824.5M
Q3 24
$961.7M
$945.9M
Q2 24
$342.5M
$836.4M
Q1 24
$1.0B
$601.5M
Gross Margin
AEP
AEP
KLAC
KLAC
Q4 25
61.4%
Q3 25
61.3%
Q2 25
62.0%
Q1 25
61.6%
Q4 24
60.3%
Q3 24
59.6%
Q2 24
60.7%
Q1 24
57.9%
Operating Margin
AEP
AEP
KLAC
KLAC
Q4 25
22.1%
Q3 25
25.5%
Q2 25
27.7%
41.9%
Q1 25
22.8%
41.3%
Q4 24
23.0%
31.6%
Q3 24
24.7%
38.0%
Q2 24
14.7%
36.8%
Q1 24
23.1%
29.7%
Net Margin
AEP
AEP
KLAC
KLAC
Q4 25
12.0%
34.7%
Q3 25
16.8%
34.9%
Q2 25
25.5%
37.9%
Q1 25
14.2%
35.5%
Q4 24
14.0%
26.8%
Q3 24
17.6%
33.3%
Q2 24
7.4%
32.6%
Q1 24
19.8%
25.5%
EPS (diluted)
AEP
AEP
KLAC
KLAC
Q4 25
$1.06
$8.68
Q3 25
$1.81
$8.47
Q2 25
$2.29
$9.04
Q1 25
$1.50
$8.16
Q4 24
$1.24
$6.16
Q3 24
$1.80
$7.01
Q2 24
$0.64
$6.16
Q1 24
$1.90
$4.43

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
AEP
AEP
KLAC
KLAC
Cash + ST InvestmentsLiquidity on hand
$417.0M
$2.5B
Total DebtLower is stronger
$47.3B
$5.9B
Stockholders' EquityBook value
$31.1B
$5.5B
Total Assets
$114.5B
$16.7B
Debt / EquityLower = less leverage
1.52×
1.08×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEP
AEP
KLAC
KLAC
Q4 25
$417.0M
$2.5B
Q3 25
$1.3B
$1.9B
Q2 25
$439.3M
$2.1B
Q1 25
$463.6M
$1.9B
Q4 24
$418.3M
$1.8B
Q3 24
$474.4M
$2.0B
Q2 24
$428.2M
$2.0B
Q1 24
$447.7M
$1.8B
Total Debt
AEP
AEP
KLAC
KLAC
Q4 25
$47.3B
$5.9B
Q3 25
$46.1B
$5.9B
Q2 25
$44.5B
$5.9B
Q1 25
$43.0B
$5.9B
Q4 24
$42.6B
$5.9B
Q3 24
$42.0B
$5.9B
Q2 24
$42.1B
$5.9B
Q1 24
$39.8B
$5.9B
Stockholders' Equity
AEP
AEP
KLAC
KLAC
Q4 25
$31.1B
$5.5B
Q3 25
$30.4B
$5.0B
Q2 25
$29.9B
$4.7B
Q1 25
$27.3B
$4.0B
Q4 24
$26.9B
$3.6B
Q3 24
$26.6B
$3.6B
Q2 24
$26.1B
$3.4B
Q1 24
$25.8B
$3.1B
Total Assets
AEP
AEP
KLAC
KLAC
Q4 25
$114.5B
$16.7B
Q3 25
$110.3B
$16.3B
Q2 25
$107.8B
$16.1B
Q1 25
$104.4B
$15.2B
Q4 24
$103.1B
$15.0B
Q3 24
$100.1B
$15.7B
Q2 24
$99.6B
$15.4B
Q1 24
$97.7B
$15.0B
Debt / Equity
AEP
AEP
KLAC
KLAC
Q4 25
1.52×
1.08×
Q3 25
1.52×
1.18×
Q2 25
1.49×
1.25×
Q1 25
1.57×
1.47×
Q4 24
1.58×
1.64×
Q3 24
1.58×
1.65×
Q2 24
1.61×
1.75×
Q1 24
1.54×
1.90×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
AEP
AEP
KLAC
KLAC
Operating Cash FlowLast quarter
$1.8B
$1.4B
Free Cash FlowOCF − Capex
$1.3B
FCF MarginFCF / Revenue
38.3%
Capex IntensityCapex / Revenue
3.2%
Cash ConversionOCF / Net Profit
3.00×
1.19×
TTM Free Cash FlowTrailing 4 quarters
$4.4B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEP
AEP
KLAC
KLAC
Q4 25
$1.8B
$1.4B
Q3 25
$2.5B
$1.2B
Q2 25
$1.2B
$1.2B
Q1 25
$1.4B
$1.1B
Q4 24
$1.7B
$849.5M
Q3 24
$2.2B
$995.2M
Q2 24
$1.5B
$892.6M
Q1 24
$1.4B
$910.0M
Free Cash Flow
AEP
AEP
KLAC
KLAC
Q4 25
$1.3B
Q3 25
$2.2B
$1.1B
Q2 25
$1.1B
Q1 25
$990.0M
Q4 24
$757.2M
Q3 24
$934.8M
Q2 24
$831.9M
Q1 24
$838.2M
FCF Margin
AEP
AEP
KLAC
KLAC
Q4 25
38.3%
Q3 25
36.3%
33.2%
Q2 25
33.5%
Q1 25
32.3%
Q4 24
24.6%
Q3 24
32.9%
Q2 24
32.4%
Q1 24
35.5%
Capex Intensity
AEP
AEP
KLAC
KLAC
Q4 25
3.2%
Q3 25
5.0%
3.0%
Q2 25
3.2%
Q1 25
2.7%
Q4 24
3.0%
Q3 24
0.0%
2.1%
Q2 24
2.4%
Q1 24
3.0%
Cash Conversion
AEP
AEP
KLAC
KLAC
Q4 25
3.00×
1.19×
Q3 25
2.46×
1.04×
Q2 25
0.95×
0.97×
Q1 25
1.81×
0.99×
Q4 24
2.59×
1.03×
Q3 24
2.26×
1.05×
Q2 24
4.27×
1.07×
Q1 24
1.43×
1.51×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

AEP
AEP

Transmissionand Distribution Utilities Revenues$1.5B29%
Electric Generation Transmission Distribution Revenues$956.6M19%
Electricity Transmission And Distribution Revenues$931.8M18%
Industrial$685.8M14%
Marketing Competitive Retailand Renewable$438.3M9%
Wholesale Generation$231.1M5%
Wholesale Transmission$113.6M2%
Other$110.2M2%
Electric Transmission$103.4M2%
Other Retail$60.1M1%

KLAC
KLAC

Wafer Inspection$1.6B48%
Services$786.1M24%
Patterning$696.2M21%
Specialty Semiconductor Process$121.6M4%
PCB And Component Inspection$80.3M2%
Other Revenue$40.2M1%

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