TRANSTHERA-B(02617.HK) +0.300 (+1.240%) closed at $22.25 on gray market yesterday, up 69.2% from the listing price of $13.15. On debut today, the stock opened at $21.65, up 64.6% from the listing price of $13.15, 3.92 million shares traded at market open.(HK stocks quote is delayed for at least 15 mins.)Related NewsHSBC Research: HKEX May Face Greater Competition as CN A-Shr Listings Accelerate