STS Digital has closed a US$30m strategic investment round led by CMT Digital, with participation from Payward, Strobe Ventures, Arrington Capital, F-Prime and BitRock Capital. STS Digital is a regulated principal trading firm specialising in digital asset derivatives and institutional market access The firm said the new capital will be used to scale its spot and options trading platform, strengthen its market making capabilities and reinforce its balance sheet and liquidity position. STS D