

Pairs traders employ either fundamental or technical analysis, or a combination of the two, to make decisions regarding which instruments to pair, and when to get in and out of trades. Many pairs traders apply technical analysis techniques and then confirm the findings using fundamentals. This extra “layer” of analysis can be used simply to ensure that the trade “makes sense”. For instance, if all technical analysis points to taking a long position in stock ABC and a short in XYZ, but the fundamentals show that stock ABC will have a weak earnings report, the position may need to be reconsidered.
Fundamental factors
Fundamental analysis examines related economic, financial and other qualitative and quantitative factors to evaluate a security’s value, and to determine which security will perform better in the shortterm. Fundamental analysts may consider a number of growth and value factors when identifying opportunities for pairs trading. These include (but are not limited to):
 Changes in operating margins
 Discounted cash flow
 Dividend discount model
 Dividend yield
 Excess cash flow
 Float
 Price/earnings to growth (PEG ratio)
 Priceearnings ratio (P/E ratio)
 Pricetobook ratio (P/B ratio)
 Pricetocashflow ratio (price/cash)
 Pricetosales ratio (price/sales)
 Return on equity
 Total assets over sales.
Technical factors
Technical analysis, on the other hand, is a method of evaluating securities by analyzing statistics generated by market activity; in particular, historical price and volume. Rather than attempting to measure a security’s intrinsic value, technical analysis seeks to identify patterns to predict future price movements.
Pairs traders call on a variety of tools and technical indicators to identify trading opportunities. The technical analyst may use, for example:
 Chart patterns (i.e., candlestick charting)
 Commercial indicators
 Moving averages
 Onbalance volume (OBV)
 Relative strength index (RSI)
 Stochastics
 Support and resistance
 Trend lines.
Other metrics may be useful to pairs traders as well. Consider beta, for example. Market risk can be measured by beta: a measure of a stock’s volatility relative to the market. The market has a beta of 1.0, and each individual stock is ranked based on how much it deviates from the market. If a stock swings more than the market over time, it will have a beta above 1.0; conversely, if a stock moves less than the market, its beta will be less than 1.0. Highbeta stocks are considered riskier but tend to provide the potential for higher returns. Lowbeta stocks have less risk, accompanied by lower potential returns. Ideally, the securities in a pairs trade have betas that are stable over time.
Deciding to implement a fundamental or technical approach is a matter of personal preference. Many pairs traders, and in particular shortterm traders, prefer a technical approach. Some conduct technical analysis and look for confirmation using certain fundamentals, while others may use fundamental analysis exclusively. As with any investment strategy, finding the right combination of analysis tools and methodology takes research, historical modeling and testing.

Investing
Fundamental Analysis For Traders
Find out how this method can be applied strategically to increase profit. 
Investing
Beta: Know The Risk
Beta says something about price risk, but how much does it say about fundamental risk factors? Find out here. 
Investing
Fundamentals And Technicals: Together At Last
It's a big mistake for a fundamental investor to ignore technical analysis. Find out how to become chart smart. 
Investing
What Are A Stock's "Fundamentals"?
The investing world loves to talk about fundamentals, but do you know what it means? 
Investing
Understanding Fundamental Vs. Technical Analysis
The methods used to analyze securities and make investment decisions fall into two very broad categories: fundamental and technical analysis. Learn the core differences in these strategies and ... 
Investing
What Is Fundamental Analysis?
Fundamental analysis is one of the basic ways to evaluate stocks. Find out what it is and how it can work for you. 
Trading
Debunking 8 Myths About Technical Analysis
Investopedia exposes a few common myths about technical analysis. 
Investing
Blending Technical And Fundamental Analysis
Find out how you can combine the best of both strategies to better understand the markets. 
Trading
Introduction to Types of Trading: Technical Traders
Learn about the different traders and explore in detail the broader approach that looks to the past to predict the future.