GXX, TSX-VGX), the energy infrastructure firm, rose 8% after it reported a 45% month-on-month jump in its cash and cryptocurrency holdings, fuelled by higher bitcoin output and energy sales during June. The Nasdaq-listed group, which develops and operates data centres, said its combined position of cash, bitcoin and cash deposits rose to $13.5 million at the end of June, up from $9.3 million the previous month. 