Fusion-IO, Inc. (NYSE:FIO) has just cut its guidance for its 2013 fiscal year after two of its key customers delayed their orders. Thursday’s cut sent the stock into a nosedive – dropping 17 percent – during morning trading. Apple Inc. (NASDAQ:AAPL)’s and Facebook Inc (NASDAQ:FB)’s orders have been helping Fusion-IO, beat the competition for the past six months at least.

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Facebook Inc (NASDAQ:FB)’s orders alone accounted for 30 percent of the company’s previous fiscal year, while Apple Inc. (NASDAQ:AAPL)’s orders accounted for 25 percent. Fusion-IO, Inc. (NYSE:FIO) lowered its 2013 fiscal year (ending in June) guidance to between $420 and $440 million. The company’s previous estimate was $521 to $539 million. Analyst consensus for the company was about $530 million in revenues for the fiscal year.

Analysts at Sterne Agee and Wunderlich Securities issued reports to investors today regarding of Fusion-IO, Inc shares. Sterne Agee analysts have kept their Buy rating on the stock but lowered their price target from $29 per share to $27 per share.

They said the company’s guidance for its fourth fiscal quarter of 2013 “left some room for potential upside.” They also said that the company’s record of 62 percent gross margin for its December quarter and the company’s guidance for maintaining a 58 to 60 percent gross margin for the 2013 fiscal year suggest that Fusion-IO, Inc. (NYSE:FIO) isn’t worried about competition. Thus they see this as a buying opportunity for investors.

Analysts at Wunderlich Securities have kept their Buy rating and $38 price target for shares of Fusion-IO, Inc. (NYSE:FIO). They point out that the company reported second fiscal quarter earnings per share of 13 cents per share on $129.6 million in revenue, which was ahead of the consensus of 8 cents per share and $119.9 million in revenue.