Tesla’s second quarter of 2021 marks its first ever billion-dollar quarter for profit. But despite a 1,100% surge in year-on-year income, the company’s stock price barely wobbled as investors contemplate how much market share Tesla will be able to hold on to as incumbent automakers accelerate their shift to EVs. For now, the world’s leading EV-maker reported deliveries of a record 200,000 cars. In its quarterly earnings report, this marked an 121% increase on the same period in 2020, and a 9.2% increase from Q1 2021. The net income from this is nearly the same as the prior four quarters combined. A quarterly revenue of nearly $12 billion – up 98% from last year – has equated to a 130%…