This descriptive study focuses on establishing the rumors that can be occurred in financial markets and analyze the impact of different types of rumors on the financial markets. To provide a comprehensive base for the research, the core of rumors and the context of rumors in financial markets are discussed, by presenting previous researches, theories and industry reports that are related to this topic. The Market Abuse Regulation is at the core of the legal aspects of unverified information. In total, 111 respondents were asked to complete an online questionnaire regarding the impact of rumors on financial markets. The study suggests that the impact of rumors on financial markets is significant. The research results show that Financials do not care about rumors; they are interested in the rumors' source. Furthermore, the impact of rumors on financial markets under normal conditions and in period of crisis was compared within this research. The market volatility as an engine of rumors dissemination is discussed. The main findings of the survey are analyzed. Finally, the recommendations for future researches on the topic are provided.