[ET Net News Agency, 4 June 2026] LONGBIO-B (01779) will be listed tomorrow (5th). It is closed at HK$149.8 on Phillip's grey market, 55.9% higher than the grey market's IPO price of HK$96.06. Based on 50 shares per lot, excluding handling fees, the book value gain per lot is HK$2,687. It is currently at HK$151 on Bright Smart's grey market, 57.2% higher than the grey market's IPO price. The book value gain per lot is HK$2,747.