Tesla extends rally as traders bet on potential S&P 500 entry

Investors watching the company's quarterly report after the bell will be laser-focused on one question: Was Tesla profitable?A net profit, under Generally Accepted Accounting Principles, would mark four consecutive profitable quarters, a first for Tesla and a key hurdle for it to be added to the benchmark S&P 500 index .While analysts on average expect a loss, estimates improved after Tesla reported higher-than-expected second-quarter vehicle deliveries earlier this month, helping push the s