KOSPI 200 Index (KOS200)

MarketWatch  Aug 3  Comment 
Geopolitics helped prompt profit-taking in Asian shares Thursday following this week’s strength.
The Economic Times  Jul 28  Comment 
The Korea Composite Stock Price Index (KOSPI) ended down 1.7 per cent at 2,400.99 points, it lowest close since July 12.
The Economic Times  Jul 24  Comment 
Australian shares retreated 0.2 per cent and South Korea's KOSPI was flat.
The Economic Times  Jul 10  Comment 
Australian stocks were up 0.4 per cent and South Korea's KOSPI added 0.2 per cent.
The Economic Times  Jul 6  Comment 
South Korea's KOSPI was flat, while Australian shares dropped 0.15 per cent.
The Economic Times  Jul 4  Comment 
Australian shares advanced 1.4 per cent, while South Korea's KOSPI was little changed.
The Economic Times  Jun 26  Comment 
Most Asian markets were trading with a positive bias in early trade. Kospi advanced 0.3%.
The Economic Times  Jun 16  Comment 
South Korea's KOSPI shook off the US woes to inch higher, with the biggest company, Samsung Electronics jumping 0.5 per cent early on Friday.
MarketWatch  Jun 8  Comment 
Some equities in Asia which started lower— like Korea and Australia— ended higher while Japan lost initial gains by day’s end as investors largely held their breath ahead of Super Thursday.
The Economic Times  May 30  Comment 
The Korea Composite Stock Price Index (KOSPI) closed down 0.4 percent at 2,343.68 points.


The KOSPI 200 is the South Korean index, indicative of the top 200 stocks in the Korea Exchange. It maps over 70% of the total capitalization of the exchange and is the most liquid index for the South korean market. The KOSPI 200 was started on January 3rd, 1990 with a base value of 100[1]. The Futures and Options markets in Korea use this index to base their calculations. KOSPI 200 is updated every 2 seconds and is published by the statistical KRX publication of the Korean Exchange[2]

Weighting and Calculations

The KOSPI is calculated as follows with Current Market Capitalization (=market capitalization at the time of comparison) as the numerator and Base Market Capitalization (=market capitalization as of January 4, 1980) as the denominator.

That is:

Current index = Current total market cap of constituents × 100 / Base Market Capitalization[3]

The base market capitalization is adjusted when there is a change in the value due to rights offering, new listing, delisting, mergers, etc.

So the New Base Market Capitalization would be[4]:

Past Market Capitalization*(Current Market Cap +- change in market cap)/Current Market Cap on the day before the change.

Composition of the KOSPI 200

The top 10 stocks of the KOSPI 200, as of October 21, 2008[5] were:

Samsung A005930 16.40
POSCO (PKX) 005490 6.81
KB Financial Group 105560 3.80
Shinhan Financial Group Co (SHG) 055550 3.69
SK Telecom (SKM) 017670 3.63
KT&G 033780 2.78
LG Electronics 066570 2.58
Hyundai Motor Company (005380-SE) 005380 2.57
KEPCO 015760 2.46
HHI 009540 2.22
TK Corporation }


  1. Wikipedia
  2. KOSPI 200 summary
  3. KOSPI Calculation on the KRX
  4. Adjustment for maintaining consistency
  5. KOSPI 200 weighted index
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