A widely-held investing tenet is the need for some type of portfolio diversification. This is true, both across asset classes and within the asset classes themselves. Concerning stocks, the Seeking Alpha community appears to be full of investors with broadly-diversified individual-stock portfolios. Based on their sizeable market caps and their strong name recognition, it wouldn't surprise me to find one or more of the following ten stocks in a large number of Seeking Alpha readers' portfolios: Apple (NASDAQ:AAPL), Verizon (NYSE:VZ), ConocoPhillips (NYSE:COP), Wal-Mart (NYSE:WMT), Home Depot (NYSE:HD), JPMorgan Chase (NYSE:JPM), Merck (NYSE:MRK), FedEx (NYSE:FDX), American Express (NYSE:AXP), and Intel (NASDAQ:INTC). Read more