Reference: And then there were none, Bangkok Post, September 28, 2008
Contrary to what is reported in the Bangkok Post (And then there were none, Bangkok Post, September 28, 2008) there was no radical overhaul of the city of London in 1986 called the Big Bang. That event refers to new rules implemented by the government of the UK to deregulate and modernize the London Stock Exchange. On October 27, 1986, the Exchange opened for trading with a new set of regulations, a new market microstructure, and full conversion to electronic screen based trading. The event was named in anticipation of a dramatic increase in trading activity.