Crude Oil Prices: VLO.MX's profitability is directly linked to crude oil prices. Higher crude oil costs can squeeze refining margins, negatively impacting the stock.

Refining Margins: The spread between crude oil prices and refined product prices (gasoline, diesel) is crucial. Wider margins boost VLO.MX's earnings and stock price.

Demand for Refined Products: Economic growth and seasonal demand influence gasoline, diesel, and jet fuel consumption. Higher demand typically increases VLO.MX's profitability.

Geopolitical Events: Global events, such as conflicts or political instability, can disrupt oil supplies and impact both crude oil prices and refined product availability, affecting VLO.MX.

Regulatory Changes: Environmental regulations regarding fuel standards and emissions can impact refining costs and capital expenditures, influencing VLO.MX's financial performance.

Inventory Levels: Inventory levels of crude oil and refined products can signal supply and demand imbalances, affecting prices and thus impacting VLO.MX's profitability.

Company-Specific Factors: Valero's operational efficiency, refining capacity, and strategic decisions influence its financial performance and stock price independently of broader market trends.

Economic Indicators: Overall economic health, including GDP growth and inflation, impacts demand for refined products and investor sentiment towards energy stocks like VLO.MX.

Interest Rates: Higher interest rates can increase borrowing costs for Valero, potentially affecting capital investments and profitability, and impacting stock valuation.

Currency Exchange Rates: Fluctuations in the MXN/USD exchange rate can impact VLO.MX's earnings if a significant portion of its business involves cross-border transactions.