There are many companies on the earnings calendar this week including Apple's (NASDAQ:AAPL) results for the three months that included the release of the iPhone 5. Monday Caterpillar (NYSE:CAT) and Yahoo! (NASDAQ:YHOO) were the highlights today. The heavy equipment maker reported profits up nearly 50% thanks to higher price points and more sales to the US. Revenue for the quarter ending in September grew 5% to $16.4 billion from $15.7 billion in the same period of last year. Net income in the quarter soared 49% to $1.70 billion or $2.54 per diluted share compared to $1.14 billion or $1.71 per share ...