Blue chip powerhouse Caterpillar (CAT -1.77%) boasts a 29-year track record of increasing dividend payouts, a testament to its robust business and cash management. Today, the stock is trading near all-time highs after a strong year.However, its strong performance also means the stock trades near a high valuation. With the stock near its peak, is this still a good buying opportunity today? Let's delve deeper to understand the business before deciding if Caterpillar belongs in your portfolio.Caterpillar is a ...