The objective of this study was toanalyse the determinants of the use of the online trading on ECX perceivedrnoperational practice. ECX had learnt that the capacity of that the existing central trading floor restricts therndirect participation of large number of market actors located at the remote parts of the country and thisrnresulted in- high transaction costs that prohibit to some actors, more volatile prices, and higher risk ofrnmarket collusion. The existing open outcry trading system at the headquarters also restricts the marketrnexpansion potential of the ECX and lack of efficiency and effectiveness of the day to day ECX operation.rnHaving noted the weak side of the existing system, ECX has implemented an integrated online tradingrnsystem that has been believed to improve the level of overall ECX perceived operational practice. Thisrnstudy used case study method due to its convenience and economic of use. The study was included 112rnrespondents of which composed of 86 Male and 26 Female.Structured self-administered questionnairesrnused to collect data from participants and Nominal data and ordinal data were collected and analysed.rnDescriptive analysis, Correlation and standard multiple regression analysis were used to analyze data andrnexamine the relationship. The correlation analysis illustrated statistically significant Strong Positivernrelation between E-trading (as measured by the Trust, Attitude, Perceived benefit and perceived risk) andrnECX perceived operation practice (as measured by constructs of price discovery scale, market expansionrnscale, access to market scale , avoidance of collusion scale and ECX Operation scale).A standard multiplernregression were carried out to examine the prediction extent of four predictors of the Online tradingrn(Perceived benefit, Perceived ease of use, Trust and Attitude) on ECX operational variables and the resultrnshowed that Among the four variables, Perceived Benefit (Beta=.256, P