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 coaxial networking expert Arris Group (Nasdaq: ARRS) jumped 14.5% overnight on heavy volume. That's what I'd call a clear signal.

So what: Adjusted second-quarter earnings of $0.21 per share beat analyst estimates with authority in spite of somewhat slow sales. The next-quarter outlook is largely in line with Wall Street's projections, meaning a return to sales growth and earnings similar to this quarter's.

Now what: Arris' success is a shocking contrast to today's terrible results from sector rival Alcatel-Lucent (NYSE: ALU) or recent downbeat reports from Juniper Networks (Nasdaq: JNPR) and Cisco Systems (Nasdaq: CSCO). We've called Arris out as the top stock for 2011 in this free report, and on days like this you can see some of the reasons why. A combination of new products and in-place upgrades for older cable systems help Arris win even when the rest of the industry is at a standstill. Click here to grab a copy of that free report and read all about it.      

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