In this study researcher examined the financial performance of public listed firms on Karachi Stock Exchange in Pakistan for the period of six years (2006 to 2011). The nature of the data is secondary and selected four firms form the private sectors of Karachi stock exchange. Financial performances of private firms by using Z-score model of Edward Altman. The results of Z-score model shows that the profitability, liquidity, solvency, leverage and activity of the firm in which all the firm in green zone. It means that no bankruptcies indicate. We conclude with the help of Z-score model that in industrial firms the Pak. Data com Ltd is top performance, Pakistan International Container Terminal Ltd is second performance, the third performer is Pakistan National Shipping Corp Ltd and fourth performer is Pak International Airline Corp Ltd. Is the last because the profitability, liquidity, solvency, leverage, and activity position is low in these period. In the solvency all the firms are impressive in these periods. Keywords: Altman’s Z-score Bankruptcy, Liquidity, Solvency and Financial performance
