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 Israeli fabless semiconductor company Mellanox Technologies sank as low as 20% today after its first-quarter outlook disappointed Wall Street.

So what: It's the second time this month that Mellanox has issued downbeat quarterly guidance, suggesting that the demand headwinds facing the company are much stronger than Mr. Market thinks. In fact, management blamed the shortfall on a buildup in inventory by one of its major customers, giving investors plenty of anxiety over its short-term growth prospects.


Now what: Management now sees first-quarter revenue of $78 million-$83 million, well below the consensus of $131.8 million. "The majority of the inventory will be depleted in the first quarter of 2013 and we expect growth to resume in the second quarter of 2013 and thereafter," CEO Eyal Waldman told analysts in a conference call. So when you consider the seemingly short-term nature of Mellanox's troubles, today's pullback looks particularly overblown.

Interested in more info Mellanox? Add it to your watchlist.

The article Why Mellanox Shares Plunged Again originally appeared on Fool.com.

Fool contributor Brian Pacampara has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.

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