#-ad_banner-#Today I want to tell you about an investing strategy that defies logic. It shouldn’t work based on everything we’ve learned about the stock market.

Yet it does. In fact, for over half a century, investors and traders have used this strategy to produce unparalleled results.

And no, for those of you who may be wondering, this strategy doesn’t involve options, derivatives or any other obscure financial product.

What’s more, what I’m about to show you can be used as part of any general investing strategy — regardless of whether you’re focusing on income, growth, blue chips, small caps or commodities.

Specifically, I’m talking about relative-strength investing.

Longtime readers might already be familiar with relative-strength investing. We’ve talked about it before in previous StreetAuthority Daily issues. But for those who need a refresher, allow me to provide a brief recap.

Relative-strength investing is simply a type of momentum investing. It involves buying the best-performing stocks (relative to the market) and holding them until their momentum changes course.

To most investors, especially those considered value investors, this strategy probably sounds ridiculous. After all, most people have heard the phrase “buy low, sell high.” Since relative-strength investors buy stocks that are already outperforming today, many view this style of investing as counterintuitive.

But that’s a mistake… and it’s one many people make whenever they approach a stock pick.

Most investors have been trained to think that the stocks with the most upside potential are those that are the most “undervalued.” The definition of undervalued varies by investor, but normally people define it using metrics like low price-to-earnings ratios, price-to-book ratios or discounted price-to-sales values.

The problem is that this kind of approach leads investors to pass up the market’s best-performing stocks in favor of the ones doing the worst. Since underperforming investments usually sport the “lowest valuations,” we tend to think these stocks are the more attractive buys.

Metaphorically speaking, this is like abandoning a luxury yacht in favor of sailing around the world in a leaky shrimp boat because buying a ticket on the shrimp boat can save you half the cost of your trip. 

Don’t get me wrong, I like saving money, but I’ll gladly take the yacht if it means I’m going to enjoy my vacation and make it home alive.

Unfortunately, when it comes to investing, most people don’t look at stocks like that. They see a great-performing company with an average or premium valuation (the yacht) as riskier than an underperforming stock with a low valuation (the leaky shrimp boat).

Research has proven that this is a terrible fallacy. It turns out that the best-performing stocks, the ones already beating the market today, are in fact the best investments to own… at least in the medium term.

One of the best studies on this phenomenon was done by the asset-management firm AQR Capital Management. They looked at U.S. stocks going all the way back to 1927. What they found was that at any given time, the stocks that were outperforming 80% of the market continued to outperform for at least the next 12 months. 

The same thing goes for the underperforming stocks. The bottom 20% of performers continued to underperform over the same period.

This idea is the central concept underpinning relative-strength investing. Relative-strength investors rank stocks based on performance, buy the best performers and sell that stock when the momentum changes course.

If it sounds too easy, that’s because it is. And despite its simplicity, this strategy has been executed with staggering results.

For example, AQR found that using a relative-strength strategy, the firm was able to outperform their benchmarks in nearly every investing category (including mid caps, blue chips and small caps). 

What’s more, James P. O’Shaughnessy, author of “What Works On Wall Street,” discovered that using a relative-strength-based system would have beaten the market by an average of 3.7 percentage points per year over the last 83 years.

With that kind of track record, it’s hard to deny the benefits of relative-strength investing. Yet as powerful as relative strength is by itself, it’s been taken to another level by our latest research project.

In my premium advisory, Maximum Profit, I use this unique investment system to leverage the powerful forces behind the relative-strength metric. I do so by combining a stock’s relative-strength rating with a proprietary, fundamental indicator. 

The combined values of these two numbers yield a stock’s “Maximum Profit score.” The higher a stock’s Maximum Profit score, the better its chance of delivering blockbuster gains.

Take Lannett Company, Inc. (NYSE: LCI) for example. Our system originally tagged Lannett as a buy back in July 2013, when the stock was sporting a Maximum Profit score of 87. 

Part of that score was based on the stock’s relative-strength rating, which at the time was 93 — meaning the company was outperforming 93% of the overall market. The other piece of LCI’s Maximum Profit score comes from our proprietary fundamental indicator, which was then 81.

Not only does the Maximum Profit system trigger buy signals, but more importantly, it tells us exactly when to sell. And after about 13 months, our system triggered a sell signal, telling us it was time to lock in our 181% gain.

Of course, not all stocks with a high Maximum Profit score will jump this much. But nonetheless, on top of LCI, the system has still highlighted seven stocks that are currently up double-digits in the past few months, including one that is up over 70% in the last seven months.

If you’d like to learn more about Maximum Profit, then I urge you to view my presentation detailing exactly how the system works. As a bonus, I’ll reveal the names and ticker symbols of other top-rated Maximum Profit stocks that are currently flashing “buy.” To view this free presentation, click here.