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 blue-collar staffing specialist TrueBlue (NYSE: TBI) got worked over today, losing as much as 18% in intraday trading after reporting disappointing fourth-quarter results.

So what: The company, which is behind brands such as Labor Ready and PlaneTechs, reported fourth-quarter results that showed a significant advance from last year. Total revenue climbed 19% while earnings per share jumped from $0.05 to $0.09. The growth wasn't enough for Wall Street though since analysts had expected that the company would report $0.12 in per-share profit for the quarter.

Now what: TrueBlue has had a strong bounce-back after a dismal 2008, but it still has a ways to go before it returns to its pre-recession levels. Analysts had been projecting a per-share profit jump to $0.74 in 2011, but it wouldn't be surprising if they tempered those expectations a bit after the shortfall in the fourth quarter.

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