Merck & Co., Inc. vs Phillips 66 — how do they compare? Merck & Co., Inc. trades at $130.22 (market cap $321.77B), while Phillips 66 trades at $223.5 (market cap $89.52B). The key difference: Merck & Co., Inc. is far larger — about 3.6× Phillips 66's market cap, and Merck & Co., Inc. pays the higher dividend (2.61%). Which is the better fit depends on your goals.
| MRK | PSX | |
|---|---|---|
Market Cap | $321.77B | $89.52B |
Sector | Health | Energy |
52-Week High | $131.84 | $224.36 |
52-Week Low | $77.60 | $120.04 |
Enterprise Value | $368.53B | $105.99B |
Dividend Yield | 2.61% | 2.26% |
Signals from Pluang's Aura AI — not financial advice
Merck (MRK) trades at $130.90, up 1.81% on the day, with a bullish technical outlook and strong institutional support. Recent earnings beats in Q4 2025 and Q1-Q2 2026, alongside a 28.07% net income margin in 2025, highlight operational strength. The acquisition of Terns Pharmaceuticals aims to bolster its oncology pipeline, though a high P/E of 104.74 signals premium valuation. Cash flow remains positive at $1.37B in 2025, but investing outflows have increased.
The stock offers growth potential from pipeline expansion and analyst consensus targeting $140.36, but risks include elevated debt-to-asset ratios (36.06% in 2025) and competitive pressures. Investors should weigh robust profitability against valuation concerns and macroeconomic headwinds affecting the pharma sector.
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Latest headlines on both assets
Merck makes pharmaceutical products to treat several conditions in a number of therapeutic areas, including cardiometabolic disease, cancer, and infections. Within cancer, the firm's immuno-oncology platform is growing as a major contributor to overall sales. The company also has a substantial vaccine business, with treatments to prevent hepatitis B and pediatric diseases as well as HPV and shingles. Additionally, Merck sells animal health-related drugs. From a geographical perspective, just under half of the firm's sales are generated in the United States.
Read more on MRK →Phillips 66 is an independent refiner with 12 refineries that have a total crude throughput capacity of 2.0 million barrels per day, or mmb/d, after converting its 255 mb/d Alliance refinery to a terminal. The midstream segment comprises extensive transportation and NGL processing assets. It also includes its DCP Midstream joint venture, which holds 45 natural gas processing facilities, 11 NGL fractionation plants, and a natural gas pipeline system with 58,000 miles of pipeline. Its CPChem chemical joint venture operates facilities in the United States and the Middle East and primarily produces olefins and polyolefins.
Read more on PSX →