Renewable Energy Group's stock price, REG.US, is influenced by several factors:

Biofuel Demand: Increased demand for biodiesel and renewable diesel pushes prices up.

Feedstock Costs: Prices of soybean oil and other feedstocks directly impact REG's production costs and profitability.

Government Policies: Tax credits, mandates, and subsidies related to biofuels significantly affect the company's financial performance.

Crude Oil Prices: Higher crude oil prices often make biofuels more competitive, boosting demand and REG's stock.

Production Capacity: REG's operational capacity and efficiency affect its ability to meet demand and generate revenue.

Technological Advancements: Innovations in biofuel production can lead to lower costs and increased efficiency.

Environmental Regulations: Stricter regulations favoring renewable fuels can create more market opportunities for REG.

Economic Conditions: Overall economic growth or recession can influence demand for transportation fuels, including biofuels.

Competition: The presence and actions of other biofuel producers impact REG's market share and pricing power.

Company Performance: REG's financial results, such as revenue, earnings, and profit margins, directly affect investor confidence.