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Big Bang II

Definition of 'Big Bang II'

20th October 1997. The use of a computer-driven trading system to cut out the middlemen in share trading, who match buyers and sellers. Initially, this was just for FTSE 100 shares, but it is likely to be extended to the FTSE 250. Bid-offer spreads, rather than being reduced as was thought, actually increased especially during trading early in the day.