Investors were clearly impressed by one particular metric in the company's freshly issued quarterly earnings report. The market caught a nice buzz from Cronos Group (CRON 4.50%) on the second-to-last day of the trading week. The Canadian pot company unveiled its second-quarter results, and investors found them encouraging enough to send Cronos stock nearly 5% higher. By comparison, the benchmark S&P 500 index increased by 2.3%. Lighting up in Canada For its second quarter, Cronos -- which reports in U.S. do ...