In marketing, efficiency is one of cost benefits analysis measurement tools that are usedrnto determine by some factors. Among these factors, regulation, warehouse, clearing andrnsettlement system, market information, and trading system has been used for this study. Today,rnthe attitude of marketing philosophies are changed thus the researcher have tried to find outrnreally these factors of market efficiency affect the market interaction.rnEfficiency in marketing is the most used measure of market performance. Improved marketingrnefficiency is a common goal of farmers, marketing organizations, consumers, and society. Thernresearch had the objective of identifying and explaining the factors of Market efficiency of ECX.rnIn order to address its objectives, the research has been generally set conceptual framework. Arnsurvey questionnaires was prepared to collect a primary data,rnThe questionnaire was distributed to 186 Ethiopian commodity exchange member participantsrnrandomly and out of which 170 were collected. The data was analyzed through descriptivernanalysis and multiple linear regression models by using SPSS version 21.rnOut of the five independent variables, market information showed a moderate positive relationrn(.353**) with marketing efficiency while Warehouse system showed a small level of positivernrelation (.128) with the marketing efficiency, trading system of commodity exchange showed arnmoderate level of positive relation (.365**) with the marketing efficiency. The rest two variablesrnnamely regulation, clearing and settlement system show moderate level of positive relation ofrn.378**and .506**respectively.rnTherefore, study recommended that ECX should give more attention about market information,rnregulation, clearing and settlement, warehouse and also trading system of the company