Based on nothing more than the stock's lackluster performance of late, it would be easy to dismiss Amazon ( AMZN 1.78% ) as a prospect for your portfolio. Amazon shares haven't just trailed the overall market this year. They've not made any net forward progress during this stretch. Something certainly seems to be wrong, even if investors can't quite put their finger on it.

However, as the adage goes, you should expect it when you least expect it. Amazon's stock may well be on the verge of a rebound for reasons that aren't obvious, but soon will be.

The Amazon you know

You know the company. Amazon is, of course, the king of North America's e-commerce industry, single-handedly accounting for nearly 40% of the United States' online sales (according to data from Digital Commerce 3

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