• List of Articles price limit

      • Open Access Article

        1 - Comparison between trading entities and groups in the incidence of magnetic effect on the range at Tehran Stock Exchange
        Meysam Alimohammadi Ali Rostami M. Feyz Fallah Shams
        In most of the world's capital markets shows that they exercise volatility range in order to achieve goals such as preventing price(the means of volatility is sharp change) manipulation and reducing market turbulence and emotions.Allowable fluctuation range of actions h More
        In most of the world's capital markets shows that they exercise volatility range in order to achieve goals such as preventing price(the means of volatility is sharp change) manipulation and reducing market turbulence and emotions.Allowable fluctuation range of actions have effects, some of which are beneficial and some are harmful. Allowable volatility range is the price range of a share in a workday; this means that the share’s changes in that day cannot exceed or become less than this limit. Therefore this range reduces market manipultion and emotions.Beside varied advantages of exercising volatility range, there are some disadvantages and researches have been done that some allege efficiency and some allege inefficiency of this phenomenon.In this study, the type of cross - correlation is based on time series data, which are 10 companies listed in Tehran Stock Exchange for the fiscal year 1391 have been selected. The method of sampling is Through screening and Convenient. To test this correlation and linear regression was used to model time series.Results show that between the examined corporations(Ceramic and tiles of Sinai, Iran Transfo, Industry of Azarab, kalsimin, The steel of Esfahan Mobarake, The Suger of Shahrod, Development of Mines and Metals, zamyad, The suger of Lorestan, The Suger of Piranshahr) 1 corporatin (gheshekar) In all companies, the role of institutional investors in incidence due to more attractive investment group. Chosen because these companies, for example, high volatility, higher trading volume during the period of investigation and that more time was open stock symbol. Manuscript profile
      • Open Access Article

        2 - Investigating the existence of magnet effect caused by price limit volatility and the role of institutional investors on it
        Mirfaze Fallah Shams S. M. Mousavieyvanaki
        Stock price limit range is one of the tools that used to control the market participants sentiments and major changes in stock prices. Apply the above procedure can also reduce the market sentiment and the loss of shareholders, also has consequences such as changing the More
        Stock price limit range is one of the tools that used to control the market participants sentiments and major changes in stock prices. Apply the above procedure can also reduce the market sentiment and the loss of shareholders, also has consequences such as changing the behavior of stock market actors and magnet effect. In this research, we investigate the magnet effect in ten sample companies that mention in the research for the year ended 1395. The research data are intraday and include 5- minute time series of prices traded in the Tehran stock exchange. Also in this research, the role of institutional investors on the magnet effect has been measured. The results of the research indicate that the magnet effect in some companies have approved but only in one of the companies whose magnet effect has been confirmed the institutional investors transaction caused it, and in other companies there has been a magnet effect caused by the individual investor. Manuscript profile
      • Open Access Article

        3 - Survey of Magnet Effect in Business Cycle and Investment
        Hamid Mahdavi Rad Feraydoon Rahnamay Roodposhti mirfeiz Fallahshams Hashem Nikoomaram
        Theoretically in economics, perfect competition market is the best and most efficient market. Such a market has as much as suppliers and demanders that no one can affect it solely and only significant changes can vary prices. Low depth of Tehran Stock Exchange causes co More
        Theoretically in economics, perfect competition market is the best and most efficient market. Such a market has as much as suppliers and demanders that no one can affect it solely and only significant changes can vary prices. Low depth of Tehran Stock Exchange causes costs to investors as a play of some participants and behavioral biases. Price limit is an opportunity for market to take and make decision more effective. Results of this research show that, due to price limitation in market, magnet effect phenomenon is appeared. It absorbs investors avoiding losses. In includes top 30 publicly traded companies like many others, and unexpectedly institutional investors have more tendency to limits. Other finding of the research indicates that fluctuation will be controlled as a result of magnet effect; meanwhile it does not affect wave length of price indices. Manuscript profile
      • Open Access Article

        4 - Price Limit Effects on Stock Prices Behavior: A Contrarian Investment Strategy Approach
        Hamid Reza Vakili fard Jalal Seifoddini Arash Abjadpour Hossein Maghsoud
        Price limit is a kind of circuit breaker which is used in developing stock exchanges and futures markets to prevent extreme price volatility, price manipulation, and financial crashes. Generally speaking, researchers and market participant usually disagree about price More
        Price limit is a kind of circuit breaker which is used in developing stock exchanges and futures markets to prevent extreme price volatility, price manipulation, and financial crashes. Generally speaking, researchers and market participant usually disagree about price limit application, its efficiency, and optimum range. Pros believe although price limit may delay price discovery, it prevents extreme price volatility and overreaction. On the other hand, cons assert that price limit causes price volatility spillover and intensify investor’s overreaction. Since there is no consensus over the price limit application and efficiency, it is recommended to study this issue using different methods. Therefore, we are trying to study price limit effects in Tehran Stock Exchange using Contrarian Investment Strategy. Our results show that price limit application in Tehran Stock Exchange delays price discovery but has nothing to do with investor’s overreaction. Consequently, it seems that regulators have prevented extreme volatility, although this constraint delays price discovery and reduces market efficiency. Manuscript profile
      • Open Access Article

        5 - Capture the effect of amplitude fluctuation permitted in Tehran Stock Exchange
        Mirfeyz Fallah Shams Mohammadreza Monjazeb Meysam Alimohammadi
        A brief look at the majority of stock exchanges in all over the world shows that they exercise volatility range in order to achieve goals such as preventing price manipulation and reducing market turbulence and emotions. Allowable volatility range is the price range of More
        A brief look at the majority of stock exchanges in all over the world shows that they exercise volatility range in order to achieve goals such as preventing price manipulation and reducing market turbulence and emotions. Allowable volatility range is the price range of a share in a workday; this means that the share’s changes in that day cannot exceed or become less than this limit. Therefore this range reduces market manipultion and emotions. Beside varied advantages of exercising  volatility range, there are some disadvantages and researches have been done that some allege efficiency and some allege inefficiency of this phenomenon. In this study,we examine one of the consequences of exercising the allowable volatility range, namely magnetic effect  and by using autocorrelation examine either existence or non-existence of it in sample corporations_20 corporations that are accepted in Tehran’s stock exchange up to 1391/09/30 . It is worth mentioning that the sample corporations  are blessed with 26/87% of all the transactions in Tehran stock exchange during  the period in which this study has been done. Results show that between the examined corporations(kesaveh, hafari shomal, betrans, sina, fazar, fasmin, folad, ghepira, gheshekar, ghenisha, kermasha, keruy, vapetro, vasapa, vasakht, vasepah, vasandogh, valsapa, vamellat, vamaden) 14 corporatins (kesaveh, hafari shomal, betrans, sina, fasmin, folad, gheshekar, ghenisha, kermasha, vasapa, vasakht, vasepah, vasandogh, vamaden) had magnetic effect. Manuscript profile