Event-driven investing strategies attempt to profit from market inefficiencies that often occur in conjunction with various corporate events such as M&A, spin-offs, splits, buybacks, IPOs, and insider buying, explains Ron Rowland, editor of Invest with an Edge

ETFs targeting these strategies often receive a smart-beta classification automatically, because their security selection is not based on sector, geography, or asset class, and their holdings are usually weighted by something other than market cap. Here are some examples:

Mergers and Acquisitions: M&A funds typically employ an arbitrage strategy of buying the firm being acquired and short-selling the acquiring company. The IQ Merger Arbitrage (MNA) is currently the best representative in the ETF space.

Buybacks: Companies often buy their own stock when they believe it is value priced. Additionally, earnings per share and other metrics can increase due to the removal of shares from the market. PowerShares Buyback Achievers (PKW) is a good example.

IPOs: I’m sure you seen countless stories about stocks zooming in value on the first day of their initial public offering (“IPO”). Unfortunately, funds like the First Trust US IPO Index ETF (FPX) do not capture those big first-day pops. Instead, they buy these new stocks shortly after their IPO with the hopes that they will continue to rise.

Spin-Offs: Oftentimes a company that is spun off from its parent is able to improve its profits due to having a more focused objective and less corporate constraints. The Guggenheim Spin-Off (CSD) holds U.S. stocks that were spun off in the last four years.

Insider Buying: When corporate insiders alter their usual buying and selling patterns of company stock, it can often provide insight regarding future profitability. The Direxion All Cap Insider Sentiment ETF (KNOW) attempts to exploit these events.

Stock Splits: Back in the 1990s, any company splitting its stock was nearly guaranteed to move higher. That strategy hasn’t paid off in more recent years, perhaps due to a dearth of splits, or perhaps because investors started to realize splits were nothing more than an accounting gimmick.

If the strategy proves to be profitable again, then the Stock Split Index ETF (TOFR) could work for you.

When it comes to classification, some ETFs fall into a gray area. For example, there are many investment strategies based on analyzing 13F filings, which are the quarterly holdings disclosures of institutional money managers.

These ETFs attempt to replicate the top holdings of various investors such as hedge fund managers via Global X Guru (GURU), investment billionaires via Direxion iBillionaire (IBLN), and activist investors via Global X Guru Activist (ACTX).

These are based on investor events instead of corporate events, although the 13F filing is probably a corporate event. Anyway, these types of funds are usually classified as theme-based or strategy-driven ETFs.

All of these ETFs were created because they were believed to represent good long-term investment strategies.

Sometimes that is true, and sometimes it is not. However, even if the long-term results are great, keep in mind that they will all go through extended periods of outperformance and underperformance.

As a result, be sure to define your selling criteria before you execute your purchase order. Then, when you do buy or sell, be sure to use a limit order because many of these ETFs are lightly traded.

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By Ron Rowland, editor of Invest with an Edge