KOSPI 200 Index (KOS200)

The Economic Times  Jun 30  Comment 
The Korea Composite Stock Price Index (KOSPI) closed up 0.7 percent at 2,074.20 from the previous close of 2,060.49.
The Economic Times  Jun 25  Comment 
The Korea Composite Stock Price Index (KOSPI) was quoted at 2,083.44 points, down 0.1 per cent as of 0320 GMT.
Mondo Visione  Jun 22  Comment 
Contents of Survey: Foreign investors’ trading activity and their weight in the market capitalization by the entire market, the industry and individual issue in the KOSPI market as of June 17, 2015 (comparison between the end of 2014 and Jun....
The Economic Times  Jun 19  Comment 
The Korea Composite Stock Price Index (KOSPI) stood at 2,053.45 points as of 0339 GMT, up 0.6 per cent from the previous close.
The Economic Times  Jun 15  Comment 
The Korea Composite Stock Price Index (KOSPI) ended down 0.5 percent at 2,042.32 points, the lowest close since April 2.
Mondo Visione  May 29  Comment 
Korea Exchange (KRX) plans to list KINDEX SYNTH-China Mainland Leverage CSI300 ETF which is run by the Korea Investment Management Co. in the KOSPI market on 28th May, 2015. ※ For more details, please refer to the attached...
The Economic Times  May 28  Comment 
The Korea Composite Stock Price Index (KOSPI) was up 0.2 percent at 2,117.77 points, recovering slightly after falling 1.7 percent.
The Economic Times  May 27  Comment 
The KOSPI was down 1.7 % at 2,107.50 points, its lowest close since May 15. The KOSPI suffered its biggest daily percentage fall since Jan 6.
The Economic Times  May 22  Comment 
The Korea Composite Stock Price Index (KOSPI) ended up 1.1 per cent at 2,146.10 points, the sharpest daily gain in a month.
The Economic Times  May 20  Comment 
The Korea Composite Stock Price Index (KOSPI) ended up 0.9 per cent at 2,139.54 points, its highest closing level since April 29.


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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