KARACHI The Karachi stock market bounced back on Tuesday due to foreign buying in the blue chip scrips of banking and oil sectors on strong valuations. Foreigners returned with a net investment of $19.5 million at the local bourse, highest since September 01, 2009. Offshore investors bought shares worth $22.5 million and sold shares valuing $3.0 million. This took YTD net investment to $504 million versus last year's $24 million. Foreign investors, whose combined holding was worth $1.9 billion at the beginning of 2010, now hold equities worth $2.8 billion, which constitutes 7.9 per cent of total market capitalization and a significant 32 per cent of its free float. The KSE-100 index closed at 11,672.64 with a gain of 75.95 points or 0.65 per cent from the previous level of 11,596.69. The same index closed higher at 11,719.45 and lower at 11,596.69 levels, respectively. A total of 142.33 million volume shares traded at KSE on the said day as against of 182.16 million recorded by market previously. Total ready market value stood at Rs4.39 billion or $51.17 million while KSE market capitalization came at Rs 3,176.39 billion or $37.00 billion, respectively on the reported day. The KSE 30-index closed at 11,215.99, increasing 67.59 points or 0.61 per cent from the last closing. The daily trading activity at market depicted that KSE future volume shares amounted to 2.84 million or Rs313.20 million while KSE future spread was recorded at 6.930 per cent. The shares of Lotee Pakistan PTA opened at Rs13.61 and closed at Rs13.40 with highest rate of Rs13.83 and lower at Rs13.32, showing a turnover of Rs12.945 million, followed by Jah Sidd Co whose shares opened at Rs10.94 and closed at Rs11.82, showing earnings of Rs11.632 million. Moreover, the shares of Nimir Industries attracted Rs7.510 million at the opening rate of Rs2.5 during at stock market on the said day. "Positive activity was witnessed throughout the trading session on institutional interest in power, banking & fertilizer sector scrips. Higher oil prices over $88 & investor interest in Mansha Group scrips on record earnings outlook played a catalyst role in positive activity at KSE despite concerns for security situation in the city ahead of Muharram processions," said Ahsan Mahanti, an analyst at Arif Habib Securities.