The affecting Factors on Stock Market reactions to Intangible informatio

The aim of this study is investigation of factors affecting investors’ reaction to intangible information include size and cash flow volatility in firms listed in Tehran Security Exchange. Intangible information is such as information about future profitably investment opportunity that get news about future firms’ performance, but may not to be measured by accounting digits or measures such as Book to Market ratio. For this, using 198 firms’ semi and yearly data in time period of 2008 to 2012 and annual return information ended to 06/31 and 12/29, the hypothesizes are investigated. In this regard, the relationship between past intangible return and future monthly returns and the modifying role of size and cash flow volatility are examined. The results show that, in short term, bigger firms experience more reversal. But firms with more cash flow volatility experience more momentum.