General Motors just boosted earnings guidance for the third straight time.General Motors (GM 10.43%) gave shareholders something to cheer about today. Better-than-expected third-quarter results pushed the company to continue a trend that has marked its earnings reports this year.GM boosted its guidance for 2024 cash flow as well as net income for the third consecutive quarter. That's helped drive GM shares higher by more than 50% this year. That includes today's move, which saw the stock jump by 10.4% as of ...