This study intended to assess efficiency of Ethiopian CommodityExchange to coffee exportrnperformance in Ethiopia. The study used the variables risk management, price discovery,rntransaction cost and market integrity to measure market efficiency of ECX. The unique nature ofrnthis study from previous studies on efficiency of ECX is that the study tried to see efficiency fromrndifferent angles using several measuring variables. Different literatures were reviewed to seernprevious study opinions on efficiency of ECX. Primary method was used in order to collect data onrnthe subject matter under study. Census research method was used to collect relevant data fromrnrespondents in the case of this study from coffee exporters.However, from 214 Ethiopian coffeernexporters, the researcher could manage to distribute 195 questionnaires and only 101 useablernquestionnaires were collected and used for this research. In depth interview was made with elevenrnindustry experts. Multiple regression equation was used to analyze data collected fromrnrespondents using 5 point Likert Scale questions. Frequency tables were used to analyze datarnrelated to respondentâ€™s profile. Results from the multiple regression showed that risk managementrnand transaction cost are found significant to explain market efficiency of ECX. However, pricerndiscovery and market integrity are found insignificant and are not good enough to explainrnefficiency of ECX. But allthe four variables can determine efficiency of ECX according to the datarnfrom the qualitative results. Risk management system offered by ECX to the market players meansrnexporters will be protected from international price fluctuation and their exporter performancernwill increase. When a true price discovery of a commodity exists, exporters will be competitive inrnthe international market and will able to sell their coffee in volume. When a commodity exchangernreduces transaction cost by offering services at a lower cost, exporters profit margin will increase.rnAnd finally market integrity has same effect on coffee export performance by Ethiopian coffeernexporters.