Tesla competitor Nikola sinks 17% after debut earnings report misses forecasts and analyst call turns contentious

· *Nikola shares slid as much as 17% on Wednesday after the company's debut earnings release missed estimates.*
· *The electric-truck manufacturer's second-quarter loss totaled $86.6 million, more than five times the year-ago period's loss.*
· *Analysts pressed for new details on Nikola's pipeline in a Tuesday earnings call...