Traders will be watching bitcoin’s UTC close Friday as a potential failure to rally above $40,000 could invite more chart-driven selling. “Lossing the $40,000 mark today will likely lead to more bearish sentiment, which in turn could drive the price further down – it could even test the $30,000 low from last July,” he said. Robbie Liu, a researcher at Babel Finance, a crypto financial services provider. said in an email.