Sunoco (SUN) concentration risks

The company's disclosed concentration is a single, high-share product exposure: sales of refined motor fuels accounted for approximately 92% of total revenues in the year ended December 31, 2025. By disclosed size this is a large-share, structural concentration — the business is fundamentally a motor fuel distribution enterprise, and the concentration reflects the company's deliberate positioning as a fuel wholesaler and retailer rather than a diversification into other product or service categories. The same source also discloses that refined motor fuels accounted for 42% of profit for the same period, a figure worth noting alongside the revenue share. The gap between the 92% revenue contribution and the 42% profit contribution indicates that motor fuel revenue is high-volume but low-margin relative to the blended business, implying that other activities — services, fees, or non-fuel revenue streams — contribute a disproportionate share of profit despite their smaller revenue footprint. No customer, geographic, or supplier concentration is disclosed in the source claims beyond the product-level fuel focus. The structural character of the concentration means the key risk variables are commodity fuel price pass-through mechanics, volume sensitivity to transportation demand, and any regulatory or environmental shift affecting motor fuel distribution economics. On balance, the product concentration is the single dominant dimension in the disclosed profile — high in revenue share, structurally defined by the business model, and driven by commodity and infrastructure dynamics rather than by any specific counterparty dependency.

For the engine’s reasoning on SUN’s current verdict — including which dimensions drove the score — see the per-dimension breakdown.

Concentration counts reflect items disclosed in each peer’s most recent 10-K; disclosed-size classification uses TrendMatrix’s internal 10-K extraction taxonomy.