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 commercial satellite image provider GeoEye (GEOY.DL) jumped 10% briefly today after investors approved its merger with DigitalGlobe (DGI).

So what: The government had been looking into antitrust issues with the merger because it would leave the U.S. with one commercial satellite imaging company. But with the loss of some military contracts, it was apparent that two separate companies couldn't survive, so the deal will go through.

Now what: For each shares of GeoEye, investors were offered 1.137 shares of DigitalGlobe stock and $4.10, $20.27 in cash, or 1.425 shares of DigitalGlobe. Since DigitalGlobe's shares have soared since the deal was announced, all investors should choose the share option, because this maximizes profits in the merger. Both stocks are up after the announcement, but until the merged company turns a profit, I would be a little leery of buying in as a new investor.

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