The company had very encouraging news to report about its hottest product.The U.S. pharmaceutical stock of the moment, Eli Lilly (LLY 3.06%), did rather well on Tuesday. Its price closed the day more than 3% higher, on the back of some good news from the lab about its hottest product. What also helped was a glowing new research note from an analyst. The stock's performance looked even better when matched against that of the S&P 500 index, which dipped by 0.2%.Zepbound for gloryThat hot product is obesity tr ...