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: Polo Ralph Lauren (NYSE: RL) popped 10% in intraday trading after reporting better-than-expected earnings and raising guidance.

So what: Fiscal first-quarter EPS of $1.90 grew 57% year over year and trounced the $1.44 consensus estimate. Revenue grew 33% percent to $1.53 on improvements in both retail and wholesale sales and came in well above the $1.41 billion consensus forecast.

Now what: Same-store sales increased 19% and online sales increased 28% from the year-ago quarter. Management raised fiscal 2012 revenue guidance to growth in the "mid-to-high teens" from growth in the "mid-teens." The chief operating officer said the company's core apparel products gained market share and its long-term growth initiatives are on track. Looking forward, he expressed concern about macroeconomic uncertainty and inflation but confidence that the company would "navigate through these near-term challenges."

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