Hindenburg short on China-based blockchain firm SOS Ltd
https://www.reuters.com/article/us-sos-hindenburg/hindenburg-short-on-china-based-blockchain-firm-sos-ltd-idUSKBN2AQ2PQ
Short-seller Hindenburg Research said on Friday it was going short on Chinese blockchain firm SOS Ltd, saying the stock has significant regulatory risk, sending the company's shares down 23%.