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 Intuitive Surgical (Nasdaq: ISRG) rose more than 11% in early trading today after soundly beating estimates in its third-quarter financial report.

So what: Revenue climbed 30% to $446.7 million, while per-share profits rose 41% to $3.05. Analysts had been expecting $2.76 a share on $418.02 million in revenue, according to data compiled by Yahoo! Finance.

Now what: Both beats were noticeable, and in line with what we've seen historically from the robot-surgeon manufacturer. So what drove the gains? The outlook, it seems. Management now says revenue will grow 22% to 23%, up from an earlier estimate of 19% to 21%. Intuitive Surgical also expects 29% to 30% growth in procedures performed via its da Vinci system, a nice bump over earlier estimates of 27% to 29% growth. But is it enough when the stock trades for more than 33 times estimated earnings? You tell me. Please weigh in using the comments box below.

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