South Korea’s Chong Kun Dang Pharmaceuticals Corp. said that it struck a deal potentially worth $1.3 billion with Swiss pharma giant Novartis AG for its CKD-510 candidate for neurological and cardiovascular diseases, propelling its shares upward 26.11% by market closing of Nov. 6. With the “largest ever” deal in its history, shares of the Seoul-based pharmaceutical (KOSPI:185750) on the Korea Exchange rose by 26.11%, or ₩26,500, closing at ₩128,000 ($98.70).