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 K12 (NYSE: LRN) rose 11% in early trading and closed up 14% on higher-than-average volume. Fourth-quarter revenue easily beat estimates while management struck an upbeat tone going into the new fiscal year.

So what: K12 booked $128.3 million in Q4 revenue, up 45% and well ahead of the $123.1 million analysts were calling for. The bad news? K12s net loss widened -- from $0.04 to $0.08 a share -- on higher spending for instructors and infrastructure.

Now what: Judging from today's action, investors are convinced that e-learning specialist K12 is materially different from professional training shops such as Apollo Group (Nasdaq: APOL) and Strayer Education (Nasdaq: STRA). They also seem to like how CEO Ron Packard talked of "robust enrollment growth" when referring to the year ahead in the earnings press release. Do you agree with the majority? Would you buy shares of K12 at current prices? Please weigh in using the comments box below.

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