Costco gas pains; Diamond Foods nut sales; Barracuda Networks sinks; comScore deal

Here are some of the stocks the Yahoo Finance team will be watching for you today.

Costco Wholesale (COST) The biggest warehouse retailer is reporting a fiscal fourth quarter profit that topped analysts' estimates, but revenue came up short. And as we've heard from companies throughout the year, Costco is blaming the strong dollar for the sales stumble.  Costco also says results were hurt by low gas prices. Leaving out those factors, sales at U.S. outlets open at least a year jumped 6%.

Diamond Foods (DMND) Like Costco, the California-based food processor best known for its walnuts also beat on the bottom line but missed on the top line. Diamond Foods says net sales fell almost 8% in the period and also like Costco, put the blame in part on the negative currency exchange.  Diamond also took a hit as demand for nuts declined.

Barracuda Networks (CUDA) The internet storage and security firm also had a better-than-expected profit in the quarter...but revenue was below forecasts. And once again, Barracuda points to the strong dollar for dragging down its business...noting its international sales were soft.  In addition, the company sees a slowdown in cloud-based storage demand...and it is cutting its estimate for billing growth in the next two quarters.

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Western Digital (WDC) Chinese information technology firm Unisplendour is buying a 15% stake in Western Digital for $3.78 billion. The deal prices new Western Digital shares at $92.50, one third more than the stock's closing price yesterday.

comScore (SCOR) The media analytics company is merging with rival Rentrak (RENT) in a stock-for-stock deal.  The agreement will make Rentrak a wholly-owned subsidiary of comScore....and it is seen as a way to grab a bigger piece of the audience measurement business from industry leader Nielsen.

Fiat Chrysler (FCAU) CNBC is reporting the so-called "road show" for the company's Ferrari initial public offering could begin as early as Friday.  Fiat Chrysler is selling about a 10% stake in the famous sports car maker, and is said to be looking to raise $1billion in the IPO.

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