The Lahore Stock Exchange (Guarantee) Limited came into existence in October 1970, under the Securities and Exchange Ordinance of 1969 by the Government of Pakistan in response to the needs of the provincial metropolis of the province of Punjab. It initially had 83 members and was housed in a rented building in the crowded Bank Square area of Lahore. The number of listed companies has increased to 519 since its inception. With 37 sectors of the economy and 519 listed companies with total capital of Rs. 555.67 billion having market capitalization of around Rs. 2.51 trillion . The LSE has 152 members of which 81 are corporate, and 54 are individual members. The LSE was the first stock exchange in Pakistan to use the internet and currently 50% of its transactions are via the internet.
LSE-25: The Lahore Stock Exchange Twenty Five company index calculates the performance of stocks assuming that all rights issues and bonus share issues only increase the listed capital so that the prices of the shares are not adjusted as they are in the case of the LSETRI. The LSE25 also assumes that dividends paid out by a component company are not reinvested. In summary, in the LSE25, no price adjustments are made when any component company issues cash dividends.
The Lahore Stock Exchange Total Return Index calculates the performance of stocks assuming that all payouts are reinvested in the index on the ex-date. The LSETRI assumes that if a component company issues bonus shares or announces a rights issue it will increase the listed capital. Additionally, the LSETRI also assumes that all pay-outs by a component company are 100% reinvested in the index. Therefore, the LSETRI is adjusted against such payouts announced by any of index constituents on its ex-date allowing the index value to remain comparable over time.