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Single offering stocks: Single and ready to mingle

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It can be hard to define what some of the largest companies in the world actually do these days. Is Google a search engine, a cloud service, a mobile phone company or an email provider? Amazon doesn't just deliver cheap stuff anymore, it provides e-commerce tools for small businesses as well as music and video streaming services. Some of the largest listed companies are "conglomerates" that have their fingers in so many pies they could host a bake sale. There are benefits to diversification, for sure. But there is also a risk of becoming a jack of all trades and master of none. Here are a bunch of companies that have stuck to their guns and stayed true to their roots, focusing on just the one product or service.

This list features 10 US-listed companies offering single products or services. It may be a brand with one product or a company that owns several businesses in the same sector doing the same thing, but they all have a minimum market cap of $1bn. This list does not represent trading advice, and you should always do your own research before placing a trade.