Costco Wholesale Corporation vs MPLX LP — how do they compare? Costco Wholesale Corporation trades at $946.89 (market cap $420.05B), while MPLX LP trades at $56.12 (market cap $58.11B). The key difference: Costco Wholesale Corporation is far larger — about 7.2× MPLX LP's market cap, and MPLX LP pays the higher dividend (7.51%). Which is the better fit depends on your goals.
| COST | MPLX | |
|---|---|---|
Market Cap | $420.05B | $58.11B |
Volume | 2,087,565 | 687,483 |
Sector | Consumer Staples | Energy |
52-Week High | $1.09K | $60.51 |
52-Week Low | $849.63 | $47.80 |
Typical Hold Time | 133 Days | — |
Enterprise Value | $407.33B | $83.22B |
Dividend Yield | 0.62% | 7.51% |
Signals from Pluang's Aura AI — not financial advice
COST trades at $944.20, up 0.21% on the day, with a bullish technical signal from moving averages but overbought RSI readings. The company reported strong March 2026 sales growth of 11.3% year-over-year (Costco Wholesale Corporation, April 8, 2026) and has shown consistent revenue and net income growth, with fiscal 2025 revenue at $275.24B and net income at $8.10B. Analyst consensus is strongly bullish with a $1,100 price target, though valuation ratios like a P/E of 45.66 are elevated.
The outlook remains positive due to robust membership fee growth and expansion, but risks include high valuation sensitivity and competitive pressures. Upside is supported by strong institutional buying and earnings beats, though any market pullback could pressure the stock given its premium multiples.
MPLX trades at $56.12, down 1.63% with a bearish technical signal. The stock shows strong fundamentals with a 12.33 P/E ratio, 40.45% net income margin, and consistent dividend payments. Recent earnings show mixed results with Q4 2025 beating expectations but subsequent quarters missing targets. Analyst consensus remains strongly bullish with 19 buy ratings and a $63.80 price target, representing 13.7% upside potential from current levels.
The outlook remains positive given MPLX's resilient midstream business model with fee-based revenues insulating it from energy price volatility. Key risks include potential energy market downturns and execution challenges in the Permian Basin expansion. The company's strong cash flow generation supports its 8% dividend yield, making it attractive for income investors seeking energy exposure with reduced commodity price sensitivity.
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The leading warehouse club, Costco has 815 stores worldwide (at the end of fiscal 2021), with most sales derived in the United States (72%) and Canada (14%). It sells memberships that allow customers to shop in its warehouses, which feature low prices on a limited product assortment. Costco mainly caters to individual shoppers, but roughly 20% of paid members carry business memberships. Food and sundries accounted for 40% of fiscal 2021 sales, with non-food merchandise 29%, warehouse ancillary and other businesses (such as fuel and pharmacy) nearly 17%, and fresh food 14%. Costco's warehouses average around 146,000 square feet
Read more on COST →MPLX LP is a Master Limited Partnership (MLP) formed by Marathon Petroleum Corporation (MPC). It is a diversified, growth-oriented company primarily engaged in the gathering, processing, and transportation of natural gas and natural gas liquids (NGLs), as well as the transportation, storage, and distribution of crude oil and refined petroleum products. MPLX owns and operates a network of midstream energy infrastructure assets, providing essential services to the energy industry across the United States.
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