Largest Insider Buys: Top 10 Stocks

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In this article, we will take a detailed look at Largest Insider Buys: Top 10 Stocks. If you want to skip our detailed analysis and see the top 5 stocks in this list, click Largest Insider Buys: Top 5 Stocks.

Why and when do insiders buy their company shares? Can you use publicly available insider trading data to your advantage and mimic what insiders are doing to make money in the stock market? Researchers have been trying to answer these questions for decades, and we have a treasure trove of research papers and studies to understand this topic from various angles.  One of the most important aspects insider trading researchers revealed over the past few years is that insiders are often contrarian investors. Thanks to the strong informational advantage, they know the true intrinsic value of their company stock. As a result, when a company's stock jumps after positive news, insiders may see it as a selling opportunity while the broader market buys the stock. In a research paper titled Do insider trades reflect both contrarian beliefs and superior knowledge about future cash flow realizations, Joseph D. Piotroski and Darren T. Roulstone shared some extremely interesting insights about insider trading. The paper established that insider trades are positively correlated to companies' stock performance in the future as well as their book-to-market ratio. On the other hand, insider trades are inversely related to recent returns. The paper said that insiders' tendency to be contrarian investors and them having "superior knowledge" has "incremental explanatory power for insider purchases, suggesting that insiders trade on the basis of both contrarian beliefs and private information about future cash flow news."

Insider Trading and "Glamour Firms"

Should you following insider trading activity of growth stocks or value stocks? The research uses the term "glamour firms" for growth companies that often get a lot of market attention. The research paper said that insiders at "glamour firms" often sell their company shares after strong earnings reports because they know their stock is becoming overvalued and growth catalysts which the market is paying for are already priced in. On the other hand, when value stocks post strong news, it is taken as a signal of strong future performance.

"For value firms, the positive relation suggests that insiders use the current earnings news as a signal of strong future performance. This behavior is consistent with Piotroski’s (2000) findings that strong earnings performance in year t can be used to identify value firms withstrong subsequent returns and earnings performance …This asymmetric trading response to the current earnings innovation is consistent with insiders recognizing both differences in investor interest across glamour and value stocks and the impact investor neglect has on the informational efficiency of stock prices."