NEW YORK ( TheStreet) -- K12 (NYSE: LRN) is trading at unusually high volume Tuesday with 1.5 million shares changing hands. It is currently at 4.1 times its average daily volume and trading down $3.28 (-14.1%) at $19.97 as of 3:50 p.m. ET. K12 has a market cap of $844.9 million and is part of the services sector and diversified services industry. Shares are up 29.6% year to date as of the close of trading on Monday. K12 Inc., a technology-based education company, provides proprietary curriculum, software systems, and educational services for individualized learning for students in kindergarten through 12th grade (K12) primarily in the United States. The company has a P/E ratio of 77.4, equal to the average diversified services industry P/E ratio and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates K12 as a hold. The company's strengths can be seen in multiple areas, such as its robust revenue growth, largely solid financial position with reasonable debt levels by most measures and good cash flow from operations. However, as a counter to these strengths, we also find weaknesses including a generally disappointing performance in the stock itself, deteriorating net income and disappointing return on equity. You can view the full K12 Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center.