The Bombay Stock Exchange today crossed the $1 trillion milestone in terms of market capitalisation of all the companies listed on the bourse on the back of soaring share prices and an appreciating rupee.The combined market value of all the firms listed on BSE rose to Rs 40,52,121.32 crore (slightly over $1,000 billion), based on an exchange rate of Rs 40.51 for $1, according to information available with the bourse.This represents a sharp gain of about 60% in the combined market cap of all BSE listed firms from $625 billion a year ago. However, the gain is relatively lower in rupee terms -- the market cap has gained just 42% in the same period from about Rs 28,40,000 crore a year ago.In 2007 so far, the market cap has gained 23% in dollar terms from $812 billion at the end of last year. In rupee terms, it has gained 12% from Rs 36,24,000 crore at 2006-end.The country's 30 top blue-chip firms, which make the benchmark index Sensex, contribute about 47% of the total market cap.The collective investor wealth in the 30 Sensex firms rose to Rs 18,82,611.83 crore (about $465 billion). It represents a sharp gain of nearly 59% from $293 billion a year ago and a jump of nearly 17% from $398 billion at 2006-end.
