Download or read book Public Information Arrival and Volatility of Intraday Stock Returns written by Petko S. Kalev and published by . This book was released on 2014 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study employs firm-specific announcements as a proxy for information flows and investigates the information-volatility relation using high-frequency data from the Australian Stock Exchange. Our analysis reveals a positive and significant impact of the arrival rate of the selected news variable on the conditional variance of stock returns, even after controlling for the potential effects of trading volume and high opening volatility. Furthermore, the inclusion of the news variable in the conditional variance equation of the generalized autoregressive conditional heteroscedastic model also reduces volatility persistence, especially with intraday data. Combined with the evidence that news arrivals display a very strong pattern of autocorrelation, our results are consistent with the Mixture of Distribution Hypothesis, which attributes conditional heteroscedasticity of stock returns to time-dependence in the news arrival process.

Download or read book Intraday Trading Volume and Return Volatility of the Djia Stocks written by Ali F. Darrat and published by . This book was released on 2003 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: We examine the contemporaneous correlation as well as the lead-lag relation between trading volume and return volatility in all stocks comprising the Dow Jones Industrial Average (DJIA). We use 5-minute intraday data and measure return volatility by the EGARCH method. Contrary to the mixture of distribution hypothesis, the vast majority of the DJIA stock shows no contemporaneous correlation between volume and volatility. However, we find evidence of significant lead-lag relations between the two variables in a large number of the DJIA stocks in accordance with the sequential information arrival hypothesis.

Download or read book The Intraday Behaviour of Bid Ask Spreads Trading Volume and Return Volatility written by Syed Mujahid Hussain and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper undertakes a fresh empirical investigation of key financial market variables and the theories that link them. We employ high frequency 5-minute data that include transaction price, trading volume, and the close bid and ask quote for the period May 5, 2004 through September 29, 2005. We document a number of regularities in the pattern of intraday return volatility, trading volume and bid-ask spreads. We are able to confirm the reverse J-shaped pattern of intraday bid-ask spreads with the exception of a major bump following the intraday auction at 13:05 CET. The aggregate trading volume exhibits L-shaped pattern for the German blue chip index, while German index volatility displays a somewhat reverse J-shaped pattern with two major bumps at 14:30 and 15:30 CET. Our empirical findings show that contemporaneous and lagged trading volume and bid-ask spreads have numerically small but statistically significant effect on return volatility. Our results also indicate asymmetry in the effects of volume on conditional volatility. However, inclusion of both measures as proxy for informal arrival in the conditional volatility equation does not explain the well known volatility persistence in intraday stock returns.

Download or read book Stock Return Dynamics Over Intra day Trading and Nontrading Periods in the London Stock Market written by Ronald W. Masulis and published by . This book was released on 1992 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modelling the Intraday Return of Volatility Process in the Australian Equity Market written by Andrew Worthington and published by . This book was released on 2003 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The data set employed consists of five-minute returns, trading volumes at bid-ask spreads over the period 31 December 2002 to 4 March 2003 for the fifty national and multinational stocks comprising the S&P/ASX 50 index." --p. 1.

Download or read book Information Trading and Stock Returns written by K. C. Chan and published by . This book was released on 1994 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper compares the intra-day patterns on the NYSE and AMEX of volatility, trading volume and bid-ask spreads for European dually- listed stocks, Japanese dually-listed stocks also listed in London, and Japanese dually-listed stocks not listed in London with American stocks of comparable average trading volume and volatility. It is shown that the intra-day patterns for these stocks are remarkably similar even though the public information flows differ markedly across these stocks during the trading day. In the morning, Japanese stocks have the greatest volatility and volume, followed by European stocks and American stocks. These rankings are reversed in the afternoon. We argue that these patterns are consistent with markets reacting to the overnight accumulation of public information which is greatest for Japanese stock and smallest for American stocks and inconsistent with the view that early morning volatility can be attributed to monopolistic specialist behavior.

Download or read book The Effects of Textual Information on Intraday Stock Return and Volatility written by Gulinuer Azhati and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Handbook of News Analytics in Finance written by Gautam Mitra and published by John Wiley & Sons. This book was released on 2011-07-13 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of News Analytics in Finance is a landmarkpublication bringing together the latest models and applications ofNews Analytics for asset pricing, portfolio construction, tradingand risk control. The content of the Hand Book is organised to provide arapid yet comprehensive understanding of this topic. Chapter 1 setsout an overview of News Analytics (NA) with an explanation of thetechnology and applications. The rest of the chapters are presentedin four parts. Part 1 contains an explanation of methods and modelswhich are used to measure and quantify news sentiment. In Part 2the relationship between news events and discovery of abnormalreturns (the elusive alpha) is discussed in detail by the leadingresearchers and industry experts. The material in this part alsocovers potential application of NA to trading and fund management.Part 3 covers the use of quantified news for the purpose ofmonitoring, early diagnostics and risk control. Part 4 is entirelyindustry focused; it contains insights of experts from leadingtechnology (content) vendors. It also contains a discussion oftechnologies and finally a compact directory of content vendor andfinancial analytics companies in the marketplace of NA. Thebook draws equally upon the expertise of academics andpractitioners who have developed these models and is supported bytwo major content vendors - RavenPack and Thomson Reuters - leadingproviders of news analytics software and machine readablenews. The book will appeal to decision makers in the banking, finance andinsurance services industry. In particular: asset managers;quantitative fund managers; hedge fund managers; algorithmictraders; proprietary (program) trading desks; sell-side firms;brokerage houses; risk managers and research departments willbenefit from the unique insights into this new and pertinent areaof financial modelling.

Download or read book Handbook of High Frequency Trading written by Greg N. Gregoriou and published by Academic Press. This book was released on 2015-02-05 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive examination of high frequency trading looks beyond mathematical models, which are the subject of most HFT books, to the mechanics of the marketplace. In 25 chapters, researchers probe the intricate nature of high frequency market dynamics, market structure, back-office processes, and regulation. They look deeply into computing infrastructure, describing data sources, formats, and required processing rates as well as software architecture and current technologies. They also create contexts, explaining the historical rise of automated trading systems, corresponding technological advances in hardware and software, and the evolution of the trading landscape. Developed for students and professionals who want more than discussions on the econometrics of the modelling process, The Handbook of High Frequency Trading explains the entirety of this controversial trading strategy. Answers all questions about high frequency trading without being limited to mathematical modelling Illuminates market dynamics, processes, and regulations Explains how high frequency trading evolved and predicts its future developments

Download or read book Intraday Information Trading Volume and Return Volatility written by Edward H. Chow and published by . This book was released on 2004 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Intraday Market Dynamics Around Public Information Arrivals written by Angelo Ranaldo and published by . This book was released on 2004 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: I analyze the impact of the arrival of public information on the intraday trading of highly liquid stocks quoted on the Paris Bourse. Using the Reuters alert system, I gather a large sample of firm-specific news and analyze market behavior around news releases. I estimate the transaction cost components around public information releases. I find that there is a disclosure impact on both trading and order flow. I also find that trading around news releases is characterized by relatively small adverse selection and order processing costs, and high order persistence.

Download or read book Information Volatility and the Cost of Capital written by Tanguy de Launois and published by Presses univ. de Louvain. This book was released on 2009 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt: We all have in mind a couple of dramatic examples of how information released by some economical or political entity resulted in tremendous consequences for a private company or, worst, for the whole financial market. This is the purpose of this dissertation to investigate the relations between information,stock volatility and the cost of capital. After the extension of the standard CAPM model to a more realistic world where some investors are “constrained” and deviate from their optimal CAPM quantities, we confront our theoretical model to the empirical reality by investigating the so-called “index effect”. Thanks to econometric specifications robust to endogeneity, we test different hypotheses proposed by the literature to explain this well known value premium of firms belonging to large indices. In a next step, we investigate how the quality and quantity of micro and macro public signals impact the main determinants of our pricing equation initially developed. We show that in a world of constrained investors, firms benefiting from a high deviation have less incentive to communicate than others. Finally, we study the link between public information and conditional volatility thanks to an original sample of several tens of thousands of Reuters and Dow Jones news releases on both the French and US markets. Thanks to various econometric specifications like GARCH models and Markov Switching Regressions, we conclude that a larger daily number of news releases increases the probability to be in the high probability regime and that the impact ofinformation is strongly dependent on the topic and the timing of the release of this information.

Download or read book The Intraday Effect of Public Information written by Calum Stewart Robertson and published by . This book was released on 2007 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: The efficient market hypothesis states that an efficient market incorporates all available information to provide an accurate valuation of an asset at any given time. Most trading models rely only on numerical information such as return, volatility, and volume to forecast the value of an asset. However, the market is also influenced by the occurrence of textual information in the form of analyst recommendations, annual reports, macroeconomic news, and press announcements. A plethora of research has analysed how markets react to macroeconomic news both intraday and in the longer term. However, asset specific news is far more common than macroeconomic news and little research has evaluated the intraday market reaction to this type of news. In this paper we analyse how assets on the US, UK and Australian stock markets react after news deemed relevant by the Bloomberg Professionalreg; service has been released. To our knowledge this is the most comprehensive evaluation of the intraday effect of asset specific news on the stock market. We find strong evidence that these markets react quickly and decisively to asset specific news throughout the day. We also find evidence of intraday seasonality's in these markets, which effect the markets reaction to news.

Download or read book Interday and Intraday Volatility written by Gary Gang Tian and published by . This book was released on 2014 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: After examining both the interday and intraday return volatility of the Shanghai Composite Stock Index, it was found that the open-to-open return variance is consistently greater than the close-to-close variance. Examining the volatility of interday returns and variance ratio tests with five-minute intervals reveals an L-shaped pattern, or more precisely, two L-shaped patterns, starting with a small hump during both the morning and the afternoon sessions, with the morning session having a much higher interday volatility than the afternoon session. This L-shaped interday volatility is supported by the similarly shaped intraday volatility pattern. This result suggests that the high volatility of intraday returns for the market open is not entirely due to the trading mechanisms (call auction in the market opening) but also due to both the accumulated overnight information and the trading halt effect. The five-minute breaks after the auction and blind auction procedures are the two major driving forces which exaggerate the high intraday volatility observed at the market open.

Download or read book Intraday Trading Activity and Volatility written by Vivek Rajvanshi and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We use tick-by-tick data for one energy futures (crude oil) and four metal futures (gold, silver, copper, and zinc) traded at Multi-Commodity Exchange India Limited (MCX) for the period of four years from January 1, 2009 to December 31, 2012. We test and find support for the Mixture of-Distribution Hypothesis (MDH), which suggests a positive simultaneous relationship between trading volume and price volatility, and the Sequential Information Arrival Hypothesis (SIAH), which argues that information arrives sequentially in the market and there would be a lead-lag relationship between volatility and volume. Further, in order to test the dispersed belief and asymmetrical information hypothesis, we test the impact of the net effect of trading numbers and order imbalance on volatility. We find that trading numbers explain the volume-volatility relationship better than the order imbalance and mainly drive the return volatility in the Indian commodity futures market. Our results find strong support for the above hypotheses and suggest that the four theories -- MDH, SIAH, dispersed belief, and asymmetrical information hypothesis -- complement each other.

Download or read book Overnight and Daytime Stock Return Dynamics on the London Stock Exchange written by Ronald W. Masulis and published by . This book was released on 1993 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Complexity in Economic and Social Systems written by Stanisław Drożdż and published by MDPI. This book was released on 2021-05-11 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is no term that better describes the essential features of human society than complexity. On various levels, from the decision-making processes of individuals, through to the interactions between individuals leading to the spontaneous formation of groups and social hierarchies, up to the collective, herding processes that reshape whole societies, all these features share the property of irreducibility, i.e., they require a holistic, multi-level approach formed by researchers from different disciplines. This Special Issue aims to collect research studies that, by exploiting the latest advances in physics, economics, complex networks, and data science, make a step towards understanding these economic and social systems. The majority of submissions are devoted to financial market analysis and modeling, including the stock and cryptocurrency markets in the COVID-19 pandemic, systemic risk quantification and control, wealth condensation, the innovation-related performance of companies, and more. Looking more at societies, there are papers that deal with regional development, land speculation, and the-fake news-fighting strategies, the issues which are of central interest in contemporary society. On top of this, one of the contributions proposes a new, improved complexity measure.