Valero, UPS, and FedEx lead trading in transportation stocks amid economic sensitivity.

Valero Energy, United Parcel Service (UPS), and FedEx are the top transportation stocks by trading volume recently. These companies operate in fuel refining, package delivery, and logistics, sectors sensitive to economic growth, fuel costs, and trade flows. Investors watch these stocks as indicators of broader economic activity. Their diverse operations across refining, delivery, and freight services position them as key players in the transportation sector's response to market changes.