American Electric Power Company Inc vs Quest Diagnostics Inc — how do they compare? American Electric Power Company Inc trades at $124.1 (market cap $67.28B), while Quest Diagnostics Inc trades at $237.99 (market cap $26.21B). The key difference: American Electric Power Company Inc is far larger — about 2.6× Quest Diagnostics Inc's market cap, and American Electric Power Company Inc pays the higher dividend (3.07%). Which is the better fit depends on your goals.
| AEP | DGX | |
|---|---|---|
Market Cap | $67.28B | $26.21B |
Sector | Utilities | Health |
52-Week High | $138.69 | $238.50 |
52-Week Low | $106.44 | $173.49 |
Enterprise Value | $120.17B | $31.97B |
Dividend Yield | 3.07% | 1.45% |
Signals from Pluang's Aura AI — not financial advice
AEP trades at $122.84, down 2.3% on the day, with a bearish technical signal. Recent Q2 2026 earnings missed estimates at $1.36 per share versus $1.48 expected, though revenue grew 7% year-over-year. The company raised full-year 2026 operating EPS guidance to $6.25–$6.55, supported by 69 GW of contracted load and a $78 billion capital plan. Analyst consensus remains strongly bullish with a $140.89 price target and no sell ratings.
The outlook is positive due to robust demand from data centers and infrastructure growth, but risks include high capital expenditures and interest expenses. Valuation metrics like a P/E of 21.42 are elevated, requiring sustained earnings growth to justify. The stock offers a stable dividend, with the next payment of $0.95 ex-dividend on August 10, 2026.
Quest Diagnostics (DGX) trades at $237.63, down slightly by 0.3% today, but maintains strong momentum with three consecutive quarterly earnings beats and a raised 2026 outlook. The stock shows bullish technical signals with moving averages supporting upward trends, while fundamentals reveal solid revenue growth to $11.04 billion in 2025 and improving profit margins. Recent news highlights surging testing demand and AI implementation driving operational efficiency.
DGX presents a favorable investment case with analyst consensus price target of $249.50 offering 5% upside potential. Strong testing demand, strategic partnerships, and earnings momentum support growth, though elevated debt levels and margin pressures from lower-margin deals pose moderate risks. The stock's current valuation at 25.21 P/E appears reasonable given growth prospects.
Trailing returns across standard periods
American Electric Power is one of the largest regulated utilities in the United States, providing electricity generation, transmission, and distribution to more than 5 million customers in 11 states. About 43% of AEP's of capacity is coal, with the remainder from a mix of natural gas (27%), renewable energy and hydro (19%), nuclear (7%), and demand response (4%). Vertically integrated utilities, transmission and distribution, and generation and marketing support earnings.
Read more on AEP →Quest Diagnostics is a leading independent provider of diagnostic testing, information, and services in the U.S. The company generates over 95% of its revenue through clinical testing, anatomic pathology, esoteric testing, and substance abuse testing with specimens collected at its national network of roughly 2,300 patient service centers, as well as multiple doctors offices and hospitals. The firm also runs a much smaller diagnostic solutions segment that provides clinical trials testing, risk assessment services, and information technology solutions.
Read more on DGX →