The following information is plucked from various sources in the internet and summarized. I am doing that in view of recent North Korea crisis and Syria conflict in Trump era. I do not think we reach market crisis level yet. What I found is that 50% dropped is a major number observed when there are major crisis. The lesser ones are mere correction around 15% range. Stock Market Crisis The Asian financial crisis was a period of financial crisis that gripped much of East Asia beginning in July 1997 and raised fears of a worldwide economic meltdown due to financial contagion. The crisis started in Thailand. Thai government was forced to float the baht due to lack of foreign currency to support its currency peg to the U.S. dollar. STI index severely impact dropping more than 50%. The Dot-com Bubble was a historic economic bubble and period of excessive ...