[ET Net News Agency, 22 September 2025]  BUTONG GROUP (06090) will be listed tomorrow (23rd). It is closed at HK$100.7 on Phillip's grey market, 41.4% higher than the grey market's IPO price of HK$71.2. Based on 100 shares per lot, excluding handling fees, the book value gain per lot is HK$2,950. It is currently at HK$102 on Bright Smart's grey market, 43.3% higher than the grey market's IPO price. The book value gain per lot is HK$3,080.