Sentiment and Momentum


Book Description

This paper sheds empirical light on whether sentiment affects the profitability of price momentum strategies. We hypothesize that news that contradicts investors' sentiment causes cognitive dissonance, which slows the diffusion of signals that oppose the direction of sentiment. This phenomenon tends to cause underpricing of losers under optimism and underpricing of winners under pessimism. While the latter phenomenon can be corrected by arbitrage buying, short-selling constraints impede arbitraging of losers under optimism, causing momentum to be stronger in optimistic periods. Our empirical analysis supports this argument by showing that momentum profits arise only under optimism, and are driven principally by strong momentum in losing stocks. This result survives a host of robustness checks including controls for market returns, firm size and analyst following. An analysis of net order flows from small and large trades indicates that small (but not large) investors are slow to sell losers during optimistic periods. Momentum-based hedge portfolios formed during optimistic periods experience long-run reversals.










Trading on Sentiment


Book Description

In his debut book on trading psychology, Inside the Investor’s Brain, Richard Peterson demonstrated how managing emotions helps top investors outperform. Now, in Trading on Sentiment, he takes you inside the science of crowd psychology and demonstrates that not only do price patterns exist, but the most predictable ones are rooted in our shared human nature. Peterson’s team developed text analysis engines to mine data - topics, beliefs, and emotions - from social media. Based on that data, they put together a market-neutral social media-based hedge fund that beat the S&P 500 by more than twenty-four percent—through the 2008 financial crisis. In this groundbreaking guide, he shows you how they did it and why it worked. Applying algorithms to social media data opened up an unprecedented world of insight into the elusive patterns of investor sentiment driving repeating market moves. Inside, you gain a privileged look at the media content that moves investors, along with time-tested techniques to make the smart moves—even when it doesn’t feel right. This book digs underneath technicals and fundamentals to explain the primary mover of market prices - the global information flow and how investors react to it. It provides the expert guidance you need to develop a competitive edge, manage risk, and overcome our sometimes-flawed human nature. Learn how traders are using sentiment analysis and statistical tools to extract value from media data in order to: Foresee important price moves using an understanding of how investors process news. Make more profitable investment decisions by identifying when prices are trending, when trends are turning, and when sharp market moves are likely to reverse. Use media sentiment to improve value and momentum investing returns. Avoid the pitfalls of unique price patterns found in commodities, currencies, and during speculative bubbles Trading on Sentiment deepens your understanding of markets and supplies you with the tools and techniques to beat global markets— whether they’re going up, down, or sideways.







Using Social Media and News Sentiment Data to Construct a Momentum Strategy


Book Description

Momentum strategy is one of the most popular strategies that market participants use to make investment decisions. In the past two decades, many researchers have shown that momentum strategy beats the market, and provides attractive portfolio returns. In this study we investigate Dow Jones Industry Average (DJIA) index and include news data and social media sentiment data to improve the performance of momentum strategy. Particularly, we select StockTwits as the social media source. Four weekly momentum strategies are built and compared over a five-year back-testing period. This research starts with using market data to calculate 5-day Relative Strength Indicator (RSI) that captures the momentum of price. A momentum strategy is constructed based on the overbought/oversold (70/30) signals of RSI proposed by Wilder (1978). Furthermore, the news and social media sentiment data are applied separately to enhance the RSI selections of momentum strategy. News impact scores are used to give more precise evaluations toward news sentiment. Finally, news and social media sentiment data are applied as a double filter to enhance the momentum strategy. The results show that news sentiment and social media data improves the performance of the momentum strategy.




Investor Sentiment, Attention and Profitability of Currency Momentum Strategies


Book Description

Paper analyzes the relationship between the profitability of currency momentum strategy and its potential sources - investor sentiment and investor attention. Evidence supporting the existence of relationship between investor sentiment and currency momentum is presented. It seems that this relationship is different than for equity momentum. Investor sentiment seems to affect in the opposite way long and short leg of currency momentum strategy. It seems that adjusting currency momentum for this relationship can magnify its profitability. Investor attention also seems to have an impact on the profitability of currency momentum which seems to be the most profitable for low attention currencies.




Quantitative Momentum


Book Description

The individual investor's comprehensive guide to momentum investing Quantitative Momentum brings momentum investing out of Wall Street and into the hands of individual investors. In his last book, Quantitative Value, author Wes Gray brought systematic value strategy from the hedge funds to the masses; in this book, he does the same for momentum investing, the system that has been shown to beat the market and regularly enriches the coffers of Wall Street's most sophisticated investors. First, you'll learn what momentum investing is not: it's not 'growth' investing, nor is it an esoteric academic concept. You may have seen it used for asset allocation, but this book details the ways in which momentum stands on its own as a stock selection strategy, and gives you the expert insight you need to make it work for you. You'll dig into its behavioral psychology roots, and discover the key tactics that are bringing both institutional and individual investors flocking into the momentum fold. Systematic investment strategies always seem to look good on paper, but many fall down in practice. Momentum investing is one of the few systematic strategies with legs, withstanding the test of time and the rigor of academic investigation. This book provides invaluable guidance on constructing your own momentum strategy from the ground up. Learn what momentum is and is not Discover how momentum can beat the market Take momentum beyond asset allocation into stock selection Access the tools that ease DIY implementation The large Wall Street hedge funds tend to portray themselves as the sophisticated elite, but momentum investing allows you to 'borrow' one of their top strategies to enrich your own portfolio. Quantitative Momentum is the individual investor's guide to boosting market success with a robust momentum strategy.




Market Momentum


Book Description

A one-of-a-kind reference guide covering the behavioral and statistical explanations for market momentum and the implementation of momentum trading strategies Market Momentum: Theory and Practice is a thorough, how-to reference guide for a full range of financial professionals and students. It examines the behavioral and statistical causes of market momentum while also exploring the practical side of implementing related strategies. The phenomenon of momentum in finance occurs when past high returns are followed by subsequent high returns, and past low returns are followed by subsequent low returns. Market Momentum provides a detailed introduction to the financial topic, while examining existing literature. Recent academic and practitioner research is included, offering a more up-to-date perspective. What type of book is Market Momentum and how does it serve a range of readers’ interests and needs? A holistic market momentum guide for industry professionals, asset managers, risk managers, firm managers, plus hedge fund and commodity trading advisors Advanced text to help graduate students in finance, economics, and mathematics further develop their funds management skills Useful resource for financial practitioners who want to implement momentum trading strategies Reference book providing behavioral and statistical explanations for market momentum Due to claims that the phenomenon of momentum goes against the Efficient Markets Hypothesis, behavioral economists have studied the topic in-depth. However, many books published on the subject are written to provide advice on how to make money. In contrast, Market Momentum offers a comprehensive approach to the topic, which makes it a valuable resource for both investment professionals and higher-level finance students. The contributors address momentum theory and practice, while also offering trading strategies that practitioners can study.




Sentiment and Momentum


Book Description