As speculation intensifies that Volt Bank is only a matter of weeks away from securing a full banking licence from APRA, the company has launched its largest capital raising program.The owner of Australia's only restricted banking authority has collected A$25 million so far this year through capital programs aimed at professional investors in Australia and overseas.Volt has been working hard to build its profile with Asian investors and the company is hopeful that institutional investors in Hong Kong and Singapore will back the Series C issue."As a bank we need more capital than a traditional technology firm," said CEO Steve Weston."Funds raised from the Series C program will be used to provide regulatory capital for the bank and to provide additional working capital."Volt might need to be patient before Australian institutional investors sink capital into the bank, with mandate restrictions limiting how much large super funds can typically commit to startup businesses.The flow of local institutional money to support Volt's business case is likely to strengthen next year after the full licence is secured.