The market will be closely watching Q3 earnings from this credit services giant.Shares of Capital One Financial (COF 3.01%) have lined investors' wallets with a fantastic 60% return during the past year. The banking giant, recognized for its major credit card business, has benefited from resilient macroeconomic conditions including solid consumer spending and borrowing.Those themes will be in focus when the company reports its third-quarter results on Oct. 24. With the stock trading at a 52-week high, can t ...