According to data from the American Automobile Association, the average price of regular gasoline in the U.S. exceeded $4.50 per gallon on Monday, down less than one cent compared to Sunday and one week ago.

According to Jinse Finance, Retension Pharmaceuticals (RTSN.US) debuted on the US stock market on Friday and fell over 10% to $10.77 at press time, with an IPO price of $12. Retension Pharmaceuticals is a US-based clinical-stage biopharmaceutical company focused on developing innovative drugs for the treatment of hypertension and other cardiovascular diseases. The company's core investigational drug, RTN-001, is a new generation phosphodiesterase 5 (PDE5) inhibitor, primarily targeting patients with uncontrolled or resistant hypertension, and is currently undergoing a Phase IIb clinical trial. This drug works by enhancing nitric oxide signaling in blood vessels to promote vasodilation and lower blood pressure. The exclusive global development license comes from French pharmaceutical giant Sanofi (SNY.US).