In this segment from Monday's Where the Money Is, Motley Fool financial analyst Matt Koppenheffer takes a look at two financial tweets from the Twittersphere. The first prompts Matt to discuss why having all of your investments come from a single sector, such as tech growth stocks, can be damaging to your portfolio, as has been shown with the sectorwide tech stock sell-off in 2014. The second tweet discusses the mortgage market, and why it's been plummeting.

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