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: Shares of Molycorp (NYSE: MCP) rose 10% in intraday trading Monday.

So What: Today's move continues a three-month run for the company developing rare-earth elements in the U.S. Molycorp has been driven up as demand for rare-earth elements increases, and the world looks for supplies outside of China.

Now What: The company released no news today, so this move is likely speculative. As trade between the U.S. and China becomes more contentious, the market for rare-earth elements, currently dominated by China, is sure to get more attention. This Fool isn't a speculator, but I won't stand in the way of this rocket stock.

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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.

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