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 speculation that occurred from 1995 to 2001. The collapse of the bubble took place during 1999–2001
. In exact, lasted about 2 years in period. STI dropped around 50% from 1999 Dec peak.
This followed quickly by SARS
in early Mar 2003
. STI hardly impacted even though there were huge fear initially. Can't even see a beep in the monthly chart.
The financial crisis of 2007–2008
, also known as the Global Financial Crisis
and the 2008 financial crisis. It began in 2007 with a crisis in the subprime mortgage market in the USA, and developed into a full-blown international banking crisis with the collapse of the investment bank Lehman Brothers on September 15, 2008. STI crashed around 50% from peak in 2007.
The Fukushima Daiichi nuclear disaster
initiated primarily by the tsunami following the Tōhoku earthquake on 11 March 2011
. There were a small dip to STI Index when we look back on STI historical chart. People who have hold their equity has hardly any impact. People who average down has a windfall on average.
The 'August 2011 stock markets fall
' was the sharp drop in stock prices in August 2011 in stock exchanges. This was due to fears of contagion of the European sovereign debt crisis, concerns over the slow economic growth of the United States and its credit rating being downgraded. For STI that's about 15% correction.
The Chinese stock market turbulence
began with the popping of the stock market bubble on 12 June 2015
and ended in early February 2016. By 8–9 July 2015, the Shanghai stock market had fallen 30 percent over three weeks as 1,400 companies, or more than half listed, filed for a trading halt in an attempt to prevent further losses. STI not spared either as our economy are more integrated with growing China. STI dropped more than 20%. However is nowhere near the major crisis level we seen in percentage seen.
, World Markets tumble after the United Kingdom voted to leave the European Union. Investors lost more than the equivalent of 2 trillion United States dollars on 24 June 2016
, making this day the worst single day drop in history, in absolute terms, according to data from S&P Global. The losses were extended to a combined total of the equivalent of 3 trillion dollars by additional selling on 27 June 2016 according to data from S&P Global. Hardly any practical dent to STI Index.
From above, appears major crisis are mainly has financial engineered implication that came to blow. They corrected roughly 50% whereas European Debt Crisis and Chinese Stock turbulence are more on political resolve and speculation. As for those other lesser crisis that are not result of financial, there are no prolong impact to us locally. Thus, there aren't clear STI impact.