An earnings report from NVIDIA Corporation (NASDAQ:NVDA) will be closely watched by investors and could be a market-leading indicator, a market strategist tells Benzinga ahead of the results coming Aug. 28 after market close. Nvidia Earnings on Watch: Analysts expect Nvidia to report second-quarter revenue of $28.46 billion, up from $13.51 billion in last year’s second quarter, according to data from Benzinga Pro. Estimates call for Nvidia to report second-quarter earnings pre share of 64 cents, compared to 27 cents per share in last year’s second quarter. Nvidia has beaten revenue estimates i…