Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: NII Holdings (Nasdaq: NIHD) shares fell 10% this morning on news that Grupo Televisa (NYSE: TV) is backing out on a deal with the company.

So What: Grupo Televisa had agreed to purchase the Nextel Mexico arm of NII Holdings in a deal announced earlier this year. Grupo Televisa said it wished to focus on its television business instead of expanding into telecommunications at this time.

Now What: This deal falling through is a short-term loss for NII but the company will be able to refocus on operating assets throughout Latin America. This could be a buying opportunity for investors looking for a dip in shares. NII's business is still growing and there are plenty of opportunities in Latin America.

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Fool contributor Travis Hoium does not have a position in any company mentioned. You can follow Travis on Twitter at @FlushDrawFool, check out his personal stock holdings or follow his CAPS picks at TMFFlushDraw. Try any of our Foolish newsletter services free for 30 days. True to its name, The Motley Fool is made up of a motley assortment of writers and analysts, each with a unique perspective; sometimes we agree, sometimes we disagree, but we all believe in the power of learning from each other through our Foolish community. The Fool has a disclosure policy.