Svmuu News: Cryptocurrency trading platform STS Digital announced the completion of a $30 million funding round led by CMT Digital, with participation from cryptocurrency exchange Kraken, venture capital firm Arrington Capital, and an investment arm of Fidelity Investments. STS Digital co-founder and CEO Maxime Seiler declined to disclose the company’s valuation for this funding round. The new funds are intended to expand its cryptocurrency perpetual contracts (rather than options) business. (Fortune)