The main purpose of this study is to investigate the migration of bubbles from the oil market to the stock exchange. First, using the method of Phillips et al. (2015), bubbles were discovered and dated in the Iranian heavy oil market in the monthly period 1980-2020 and the Tehran Stock Exchange in the period 2008-2020. Then, using the method presented by Gomez-Gonzales et al. (2018), the migration of bubbles from the oil market to the Tehran Stock Exchange in the period 2020-2008 was investigated. The results showed that Iranian heavy oil has 9 bubble cycles in the period under study. Also, six bubbles were observed in the period under review for the Tehran Stock Exchange. The findings indicate the closeness of the ninth bubble in the oil market and the fourth bubble in the Tehran Stock Exchange. The hypothesis of bubble migration from the oil market to the Tehran Stock Exchange was tested in this period. The results of the hypothesis test indicate the acceptance of bubble migration from the oil market to the Tehran Stock Exchange.

This study tries to examine the efficiency of Tehran Stock Exchange and identify factors that can improve this efficiency. The methodology of this research, based on its nature and objectives, is descriptive-analytic. Based on the research objectives, the best way to collect the required data was questionnaire. Also, using independence tests (so run test) we examined weak form of efficiency in Tehran Stock Exchange. Our results do not confirm the weak form of efficiency of capital market in Tehran stock exchange. In order to identify the factors that can improve the efficiency of Tehran Stock Exchange, in addition to analyzing expert opinions, the method of factor analysis has been used. And to determine the degree of importance of different factors, we used Entropy technique. The results show that market information system is the most important one. In addition, some practical recommendations are suggested in this paper.

The purpose of this study is to evaluate the relationship between macroeconomics variables and Tehran Exchange Price Index. In other words in this article in order to extend the previous studies, the interpretation of three categories of monetary and fiscal policies and industrial development on the growth of the capital market is considered. For this purpose we have analyzed the relationship between some macroeconomic variables such as Liquidity, tax and industrial production index with Total Price Index and seasonal data since 1994 till 2014. In this study the relationship between variables have been estimated by using regression analysis and method of ordinary lease squares. After controlling for regression assumptions including Outliers, Normal distribution for the dependent variable, Homogeneity of variance, non autocorrelation; the results indicate there are positive and significant relationship between liquidity and the industrial production index with Total Price Index and there are negative relationship between taxes and total Price Index. Among other indicators used in the study considerable significant relationship was found with Tehran Exchange Price Index. These results suggest the neutralizing effects of both monetary and fiscal policy on the Tehran Exchange Price Index and confirm the impact of industrial sector development on stock index

If the stock prices of the firms are efficient, the future prices cannot be predicted through the study of past price series. The purpose of the research is testing weak-form efficiency, using Lo & Mackinaly variance ratio test, for the companies stipulated in principle 44 of the Constitutional Law that have been offered in Tehran Stock Exchange (TSE). The Sample of the research is all companies subject to principle 44 from 1385/11/15 (date of offering of thefirst company in TSE) to the first half of 1389. The results of the research indicate that stock prices of principle 44 companies offered in TSE are not weak-form efficient.

This study sought to examine whether online stock trading on information asymmetry companies listed in Tehran Stock Exchange will have an effect or not? The statistic population of the study is comprised of the companies listed in Tehran Stock Exchange during 2010/9-2013/8 as the time-span of the study. The sample of the study consists of 117 companies for 36 months and it totally includes 4212 observations. For hypothesis testing, regression analysis and data from the test (EGLS) panel data using the software Eview’s 8 is used. The general result of this research indicates that online stock trading has a considerable negative effect on information asymmetry of companies listed in Tehran stock exchange. It is understood from the results that Online stock trading in the Tehran Stock Exchange on the one hand an increase in the number of traders and the subsequent increase in competition between them and the other hand to reduce transaction costs and adverse selection costs. This causes the reduction of information asymmetry companies listed in the Tehran Stock Exchange.

In this study¡ the effect of instruction approved by the Stock Exchange on the trading liquidity of the shares of the listed companies in Tehran Stock Exchange are examined. For this purpose¡ the effect of five recipes with the information disclosure record companies¡ publishers disciplinary accepted in Tehran Stock Exchange¡ received telephone orders using Contact Center Brokerage¡ regulations pertaining to applicants for purchase of major trading stocks and shares priority Tehran Stock Exchange and OTC consisted of 6 females and 4 notes and purchases of securities in the period 01.01.1386 to 31.03.1392 has been studied.
Using data from 164 companies listed in Tehran Stock Exchange recipes Mlamlaty results show a significant impact on the liquidity of the Securities Exchange Act of shares.

ObjectiveAccording to the hypothesis of behavioral finance, the main part of the ups and downs in the stock market can be the result of fear and greed. The Fear & Greed Index is a way to gauge stock market movements and determine if stocks are fairly priced. The theory is based on the logic that excessive fear tends to drive down share prices, and too much greed tends to have the opposite effect. The objective of this paper is to represent the fear and greed behavioral index daily in the Tehran Stock Exchange. MethodsThe sample for this research comprises all companies listed on the Tehran Stock Exchange from 2009/12/09 to 2023/08/22. The fluctuation in the number of accepted companies on the Tehran Stock Exchange is attributed to factors such as initial public offerings, the transfer of stocks between over-the-counter and the stock market, the delisting of symbols, and the cessation of trading for certain symbols. To apply the Fear and Greed Index in the Tehran Stock Exchange, we adapted CNN's Fear and Greed Index, making some modifications. Specifically, we retained seven variables while removing the Junk bond demand variable due to the absence of credit ratings for the debt securities traded on the Tehran Stock Exchange. Therefore, the represented index is based on the six variables, including stock market momentum, stock price strength, stock price breadth, put and call options, market volatility, and safe haven demand which shows the sentiments of the market in five scales, including excessive fear, fear, neutral, greed, and excessive greed. It should be noted that due to the diverse characteristics of the significant variables used in calculating the Fear and Greed Index and the need to consolidate all six variables into a single index, each variable is normalized using a standard method. ResultsThis study classifies the overall behavior of investors in the Tehran Stock Exchange into five sentiment spectrums: excessive fear, fear, neutral, greed, and excessive greed. The research findings reveal that during the years 2009, 2010, 2011, 2014 to 2016, and 2018 to 2023 (spanning from 2009/12/09 to 2023/08/22), the stock market exhibited higher levels of fear. Conversely, in 2012 and 2017, the Tehran Stock Exchange demonstrated a neutral sentiment on most trading days. Additionally, in 2013, the Tehran Stock Exchange displayed a greedy sentiment on the majority of its trading days. ConclusionIn total, from December 9, 2009, to August 22, 2023, out of 3299 working days, the Tehran Stock Market encountered excessive fear on 204 days, fear on 1604 days, neutrality on 878 days, greed on 565 days, and excessive greed on 48 days.

The purpose of this study profitability strategy momentum prices in Tehran stock exchange and evaluation of the ratio of dividends to prices on the efficiency of this strategy. This research, in terms of applications, according to data type bit. In this study shares 96 companies participating Active in the Tehran Stock Exchange from 1380 to 1389 has been selected The main research hypothesis is that the momentum strategy can be an extra return earned on the Tehran Stock Exchange. Compared with test results of hypothesis test showed that the momentum strategy is profitable during the period of six months.