Download or read book Determinants of Implied Volatility Function on the Nifty Index Options Market written by Vijayakumar Narayanamoorthy and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In this paper, we examine two important propositions for the Indian options market: (1) the relationship between implied volatility and moneyness referred to as volatility smile and (2) the potential determinants of the smile asymmetry. We use daily data for the S&P CNX Nifty index call and put options and the underlying market index for the calendar years 2004 and 2005. We find that the volatility functions exhibit a positive slope in the Indian context using alternative measures of moneyness, thus confirming the consistency of our findings. Our evidence on smile asymmetry is in contrast with findings for mature markets, which exhibit negative asymmetry profiles in general. This may be owing to differences in investors' behaviour and market microstructure between mature and emerging markets. We also show that historical volatility and time to expiration are the potential determinants of smile asymmetry in India, as is the case with international evidence. We feel that a strong theoretical foundation should be provided for this observable empirical phenomenon.

Download or read book Determinants of Implied Volatility Function on the Nifty Index Options Market written by Sanjay Sehgal and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fitting Local Volatility Analytic And Numerical Approaches In Black scholes And Local Variance Gamma Models written by Andrey Itkin and published by World Scientific. This book was released on 2020-01-22 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: The concept of local volatility as well as the local volatility model are one of the classical topics of mathematical finance. Although the existing literature is wide, there still exist various problems that have not drawn sufficient attention so far, for example: a) construction of analytical solutions of the Dupire equation for an arbitrary shape of the local volatility function; b) construction of parametric or non-parametric regression of the local volatility surface suitable for fast calibration; c) no-arbitrage interpolation and extrapolation of the local and implied volatility surfaces; d) extension of the local volatility concept beyond the Black-Scholes model, etc. Also, recent progresses in deep learning and artificial neural networks as applied to financial engineering have made it reasonable to look again at various classical problems of mathematical finance including that of building a no-arbitrage local/implied volatility surface and calibrating it to the option market data.This book was written with the purpose of presenting new results previously developed in a series of papers and explaining them consistently, starting from the general concept of Dupire, Derman and Kani and then concentrating on various extensions proposed by the author and his co-authors. This volume collects all the results in one place, and provides some typical examples of the problems that can be efficiently solved using the proposed methods. This also results in a faster calibration of the local and implied volatility surfaces as compared to standard approaches.The methods and solutions presented in this volume are new and recently published, and are accompanied by various additional comments and considerations. Since from the mathematical point of view, the level of details is closer to the applied rather than to the abstract or pure theoretical mathematics, the book could also be recommended to graduate students with majors in computational or quantitative finance, financial engineering or even applied mathematics. In particular, the author used to teach some topics of this book as a part of his special course on computational finance at the Tandon School of Engineering, New York University.

Download or read book The Roles of Short Run and Long Run Volatility Factors in Options Market written by Yang-Ho Park and published by . This book was released on 2015 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper examines the option pricing implications of short-run and long-run volatility factors, which are assumed to be driven by short-run and long-run news events, respectively. Using a comprehensive dataset of S&P 500 index options over 1993-2008, I find that the proposed two-factor volatility models have two desirable properties that help capture the term structures of option-implied volatility and skewness. First, the options data show evidence of time-variation in the long-run expectation of volatility, which may be caused by long-run news events. While this feature is inconsistent with a single-factor volatility assumption, the two-factor volatility models do a good job of matching the entire term structure of implied volatility. Second, the options data reveal that the term structure of implied skewness is nearly flat on average. This feature is hard to reconcile with single-factor volatility models and jumps in returns. In contrast, I find that the two-factor volatility models can generate flat term structures much like those seen in the data. In particular, the short-run volatility factor is dominant in generating short-term skewness, while the long-run volatility factor plays a pivotal role in generating long-term skewness.

Download or read book Predicting Volatility and the Information Content of Informed Traders in an Option Market written by Teng-Ching Huang and published by . This book was released on 2015 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: We investigate the impact of information trading on predicting variation of implied volatility. First, we find that informed traders do trade in the index options market. The predicting biases of implied volatilities on the realized volatility are correlated with the information trading. Second, we find that delta market depth and bid-ask spread are correlated with the predicting variations in implied volatilities. Moreover, the difference between realized and implied volatility, bid-ask spread, and delta market depth are the determinants of price discovery in the option market. Third, the intraday patterns in realized volatility exhibit an inverse J-shape, which induces forecasting biases in implied volatilities. Finally, based on the performance of the volatility trading strategy, the result does not support efficient market hypothesis.

Download or read book Handbook of Evidence Based Management Practices in Business written by Satyendra Kumar Sharma and published by Taylor & Francis. This book was released on 2023-05-25 with total page 725 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of selected high-quality research papers presented at the 4th International Conference on Evidence-Based Management (ICEBM) 2023, held at Birla Institute of Technology & Science, Pilani, Rajasthan, India, during February 24–25, 2023. It has 76 chapters written by various scholars focusing on evidence-based management practices in different functional areas of management with the application of theory and empirical techniques. This book will be helpful to practitioners, academics, scholars, and policymakers.

Download or read book The Role and Relevance of Option Implied Volatility in Financial Markets written by Megha Agarwal and published by . This book was released on 2014 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research paper is an effort to review the relevance of option implied volatility in the modern day financial markets. Volatility indices such as VIX, VFTSE and India VIX act as efficient predictors of market volatility over the near term. The role implied volatility plays in providing a measure of investors fears, explaining stock returns, credit default swap valuation, measuring bank risk, and understanding interest rate models for pricing contingent claims has been emphasized. The cases of Euro dollar option markets, S&P 100 index options, agricultural commodities on New York Board of Trade, sweet crude oil futures on NYMEX have been discussed in particular.This measure of investors fear gauge is found to be superior to logit regression and Altman's Z. It would have been helpful in predicting the UK Banking Crisis 2008. This important determinant of volatility must be incorporated in risk management strategies to lead to a robust and integrated risk management framework.

Download or read book Testing the Expectations Hypothesis on the Term Structure of Volatilities Implied by Index Options written by Alok Dixit and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This research paper is aimed at diagnosing the pricing inefficiencies prevailing in the Indian index options market. The inefficiencies are being revealed by testing the rational expectations hypothesis on the term structure of implied volatilities of index options. In the paper, an effort has been made to diagnose: (a) whether the implied volatilities, in the case of both short dated as well as long dated options, are mean-reverting or not; and (b) whether the volatilities implied by the long dated options are consistent with the future volatilities estimated on the basis of corresponding volatilities implied by short dated options, assuming rational expectations to hold. The implied volatilities are calculated by inverting the adjusted form of Black-Scholes model. For the analysis, daily data on index options based on National Stock Exchange index i.e. Samp;P CNX NIFTY has been used for the period from June 4, 2001 (starting date for index options in Indian securities market) to December 31, 2006. The analysis reveals that implied volatilities are, in fact, mean-reverting. However, implied volatility of long dated options is not evolving the way as warranted by rational expectations hypothesis, and the evidences of overreaction and underreaction are seen for both calls as well as put options.

Download or read book The Information Frown in Option Prices written by Louis H. Ederington and published by . This book was released on 1999 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well known that for options with the same expiration date, levels of implied volatility differ systematically by strike price in a smile or smirk pattern. We show that (in the equity index options market) information content also differs systematically by strike price displaying a quot;frownquot; pattern. Implied volatilities calculated from near-the-money, and particularly from moderately high strike price, options contain considerable information regarding future volatility and efficiently subsume the information in the historical record. Implied volatilities calculated from far-from-the-money options (particularly options with low strike prices) are much less informative and do not incorporate the information in the asset's price history. While the prices of near-the-money and moderately high strike price options appear largely determined by the market's expectations of future volatility, the prices of far-from-the-money and low-strike-price options appear to be largely determined by factors other than the market's volatility expectation. These other determinants of implied volatility are apparently long-lived or persistent since the frown cannot be attributed to transitory factors. Theories of the smile need to not only explain why volatility levels differ by strike price but should also explain why implied volatilities at some strike prices are largely determined by the market's volatility expectations while others appear relatively independent of these expectations.

Download or read book Relationship Between Implied Volatility and Realised Volatility the Case of the German Stock Index Options Market written by Panagiotis Pastos and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Implied Volatility Functions written by Bernard Dumas and published by . This book was released on 1996 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Black and Scholes (1973) implied volatilities tend to be systematically related to the option's exercise price and time to expiration. Derman and Kani (1994), Dupire (1994), and Rubinstein (1994) attribute this behavior to the fact that the Black-Scholes constant volatility assumption is violated in practice. These authors hypothesize that the volatility of the underlying asset's return is a deterministic function of the asset price and time and develop the deterministic volatility function (DVF) option valuation model, which has the potential of fitting the observed cross-section of option prices exactly. Using a sample of S & P 500 index options during the period June 1988 through December 1993, we evaluate the economic significance of the implied deterministic volatility function by examining the predictive and hedging performance of the DV option valuation model. We find that its performance is worse than that of an ad hoc Black-Scholes model with variable implied volatilities.

Download or read book Implied Adjusted Voladility Functions written by Hanani Farhah binti Harun and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Volatility Smile written by Emanuel Derman and published by John Wiley & Sons. This book was released on 2016-09-06 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Volatility Smile The Black-Scholes-Merton option model was the greatest innovation of 20th century finance, and remains the most widely applied theory in all of finance. Despite this success, the model is fundamentally at odds with the observed behavior of option markets: a graph of implied volatilities against strike will typically display a curve or skew, which practitioners refer to as the smile, and which the model cannot explain. Option valuation is not a solved problem, and the past forty years have witnessed an abundance of new models that try to reconcile theory with markets. The Volatility Smile presents a unified treatment of the Black-Scholes-Merton model and the more advanced models that have replaced it. It is also a book about the principles of financial valuation and how to apply them. Celebrated author and quant Emanuel Derman and Michael B. Miller explain not just the mathematics but the ideas behind the models. By examining the foundations, the implementation, and the pros and cons of various models, and by carefully exploring their derivations and their assumptions, readers will learn not only how to handle the volatility smile but how to evaluate and build their own financial models. Topics covered include: The principles of valuation Static and dynamic replication The Black-Scholes-Merton model Hedging strategies Transaction costs The behavior of the volatility smile Implied distributions Local volatility models Stochastic volatility models Jump-diffusion models The first half of the book, Chapters 1 through 13, can serve as a standalone textbook for a course on option valuation and the Black-Scholes-Merton model, presenting the principles of financial modeling, several derivations of the model, and a detailed discussion of how it is used in practice. The second half focuses on the behavior of the volatility smile, and, in conjunction with the first half, can be used for as the basis for a more advanced course.

Download or read book BUSINESS ECONOMY AND SOCIETY IN VUCA WORLD VOLUME 2 written by Rahul Sarkar and published by RED'SHINE Publication. Pvt. Ltd.. This book was released on with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effectiveness of Monetary Policy Transmission Under Capital Inflows written by Ms.Sonali Jain-Chandra and published by International Monetary Fund. This book was released on 2012-11-02 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effectiveness of the monetary policy transmission mechanism in open economies could be impaired if interest rates are driven primarily by global factors, especially during periods of large capital inflows. The main objective of this paper is to assess whether this is true for emerging Asia’s economies. Using a dynamic factor model and a structural vector auto-regression model, we show that long-term interest rates in Asia are indeed predominantly driven by global factors. However, monetary policy transmission mechanism remains effective in the region, as it operates predominantly through short-term interest rates. Nevertheless, the monetary transmission mechanism, though effective, is somewhat weaker in Asia during the periods of surges in capital inflows.

Download or read book Theory of Rational Option Pricing written by Robert C Merton and published by Legare Street Press. This book was released on 2022-10-27 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book Risk Management and Value written by Mondher Bellalah and published by World Scientific. This book was released on 2008 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive discussion of the issues related to risk, volatility, value and risk management. It includes a selection of the best papers presented at the Fourth International Finance Conference 2007, qualified by Professor James Heckman, the 2000 Nobel Prize Laureate in Economics, as a high level one. The first half of the book examines ways to manage risk and compute value-at-risk for exchange risk associated to debt portfolios and portfolios of equity. It also covers the Basel II framework implementation and securitisation. The effects of volatility and risk on the valuation of financial assets are further studied in detail. The second half of the book is dedicated to the banking industry, banking competition on the credit market, banking risk and distress, market valuation, managerial risk taking, and value in the ICT activity. With its inclusion of new concepts and recent literature, academics and risk managers will want to read this book. Sample Chapter(s). Introduction (40 KB). Chapter 1: Managing Derivatives in the Presence of a Smile Effect and Incomplete Information (97 KB). Contents: Managing Derivatives in the Presence of a Smile Effect and Incomplete Information (M Bellalah); A Value-at-Risk Approach to Assess Exchange Risk Associated to a Public Debt Portfolio: The Case of a Small Developing Economy (W Ajili); A Method to Find Historical VaR for Portfolio that Follows S&P CNX Nifty Index by Estimating the Index Value (K V N M Ramesh); Some Considerations on the Relationship between Corruption and Economic Growth (V Dragota et al.); Financial Risk Management by Derivatives Caused from Weather Conditions: Its Applicability for Trkiye (T uzkan); The Basel II Framework Implementation and Securitization (M-F Lamy); Stochastic Time Change, Volatility, and Normality of Returns: A High-Frequency Data Analysis with a Sample of LSE Stocks (O Borsali & A Zenaidi); The Behavior of the Implied Volatility Surface: Evidence from Crude Oil Futures Options (A Bouden); Procyclical Behavior of Loan Loss Provisions and Banking Strategies: An Application to the European Banks (D D Dinamona); Market Power and Banking Competition on the Credit Market (I Lapteacru); Early Warning Detection of Banking Distress OCo Is Failure Possible for European Banks? (A Naouar); Portfolio Diversification and Market Share Analysis for Romanian Insurance Companies (M Dragota et al.); On the Closed-End Funds Discounts/Premiums in the Context of the Investor Sentiment Theory (A P C do Monte & M J da Rocha Armada); Why has Idiosyncratic Volatility Increased in Europe? (J-E Palard); Debt Valuation, Enterprise Assessment and Applications (D Vanoverberghe); Does The Tunisian Stock Market Overreact? (F Hammami & E Abaoub); Investor-Venture Capitalist Relationship: Asymmetric Information, Uncertainty, and Monitoring (M Cherif & S Sraieb); Threshold Mean Reversion in Stock Prices (F Jawadi); Households'' Expectations of Unemployment: New Evidence from French Microdata (S Ghabri); Corporate Governance and Managerial Risk Taking: Empirical Study in the Tunisian Context (A B Aroui & F W B M Douagi); Nonlinearity and Genetic Algorithms in the Decision-Making Process (N Hachicha & A Bouri); ICT and Performance of the Companies: The Case of the Tunisian Companies (J Ziadi); Option Market Microstructure (J-M Sahut); Does the Standardization of Business Processes Improve Management? The Case of Enterprise Resource Planning Systems (T Chtioui); Does Macroeconomic Transparency Help Governments be Solvent? Evidence from Recent Data (R Mallat & D K Nguyen). Readership: Academics and risk managers."