An executive vice president at Aetna Inc. (NYSE:AET), Karen Rohan, directly purchased just over 4,000 shares of the company’s stock on February 6th at an average price of $49.53 per share according to a Form 4 filed with the SEC. Studies show that insider purchases tend to be bullish signals (read more about studies on insider trading). We think that this is because insiders face a strong incentive to diversify their wealth away from the company, and therefore reduce their risk; when they ignore the benefits of diversification and buy the stock anyway it signals high confidence in the company. This is why, in addition to using hedge fund filings to develop investing strategies (for example, our most popular small cap stocks among hedge funds which produced an excess return of 18% between September and January), we also maintain a database of insider purchases and take a brief look at significant insider buys to help investors decide if the company is worth further research.
Aetna Inc. has already reported its results for the fourth quarter of 2012. If we eliminate the effects of a group annuity contract conversion (which increased both revenue and expenses by about $940 million), then revenue was up 5% from the same period in 2011. However, higher health care costs rose faster than premium revenue, which not only reduced margins but also caused earnings to fall by 49%. The stock now trades at 11 times trailing earnings- health insurers in general are valued at fairly low multiples of earnings, as the market considers the industry in danger of further federal regulation. Analyst expectations for 2014 imply a forward price-to-earnings multiple of 9, showing that the sell-side expects the recent decline in net income to reverse. Even if Aetna can hold its business steady and see no growth, the stock is cheap enough that it might be worth considering.
Billionaire David Einhorn’s Greenlight Capital, which has been a major owner of many health insurance companies, increased its stake in Aetna Inc. during the third quarter of 2012 to a total of 4.4 million shares (see Einhorn's stock picks). Orbis Investment Management, which is managed by William Gray, had 6 million shares in its own portfolio at the end of September (find Orbis's favorite stocks). Barry Rosenstein’s JANA Partners initiated a position of 2.3 million shares in Aetna during the quarter (check out more stocks JANA was buying).
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