Why CPST went up? Reason: Capstone First to Gain UL on Generators for NEC Class I, Division 2 Installations. UL Certifies Model for Hazardous Area Placement. Why LWAY will go up? Reason: Lifeway Foods Inc. (LWAY) said after Thursday's closing bell that it has begun to distribute its kefir milk-based products to a limited test market of up to 17 Wal-Mart Stores Inc. (WMT) locations in the Chicago area. and Lifeway Foods quarterly profit rises 29%.