Sources: Hong Kong-based stablecoin payments company RedotPay plans a US IPO filing by year-end and is in talks for a pre-IPO round at a $4B to $5B valuation (Olga Kharif/Bloomberg)

Olga Kharif / Bloomberg: Sources: Hong Kong-based stablecoin payments company RedotPay plans a US IPO filing by year-end and is in talks for a pre-IPO round at a $4B to $5B valuation  —  Crypto firm Redotpay is considering filing confidentially for a US initial public offering by year-end, according to people familiar …