KOSPI 200 Index (KOS200)

The Economic Times  Oct 8  Comment 
Foreigners were set to be net buyers for a third consecutive session, purchasing a net 100.2 billion won($86.33 million) of KOSPI shares by midday.
The Economic Times  Sep 30  Comment 
Korea Composite Stock Price Index (KOSPI) ended up 1 per cent to 1,962.91 points after falling as much as 1.4 per cent early in the session.
The Economic Times  Sep 17  Comment 
The Korea Composite Stock Price Index (KOSPI) closed at 1,976.49 points, barely changed from the previous close at 1,975.45 points.
Mondo Visione  Sep 14  Comment 
Korea Exchange (KRX) published “KOSPI Benchmark Index (i-KOSPI)”, which was developed for large pensions and funds to invest benchmarking the KOSPI, on September 14, 2015.  For more details, please refer to the attached...
Mondo Visione  Sep 10  Comment 
Quantitative Aspect: As daily trading volume of Mini products has continued to increase, Mini KOSPI200 Futures and Options reached 30 thousand contracts level and 70 thousand contracts level, respectively. Qualitative aspect: there is almost no...
The Economic Times  Sep 3  Comment 
Korea Composite Stock Price Index (KOSPI) was up 0.4 per cent at 1,922.58 points as of 0213 GMT. Gainers outnumbered losers by 1.8 to 1.
The Economic Times  Aug 26  Comment 
The Korea Composite Stock Price Index (KOSPI) ended up 2.6 per cent at 1,894.09 points, its biggest per centage gain since July 11, 2013.
Mondo Visione  Aug 26  Comment 
▶ The analysis of H1 FY2015 performance of KOSPI listed company shows an increase of operating profits, slightly lower net profits, and a decline in sales revenue compared to the H1 FY2014 performance.  ▶ The sales revenue declines...
Mondo Visione  Aug 24  Comment 
Designation as a KOSPI 200 constituent brought a positive impact to prices of the stocks concerned after the announcement.  During the last 4 years, the average return rates of the newly selected constituents of KOSPI 200 for one week after...
The Economic Times  Aug 6  Comment 
The Korea Composite Stock Price Index (KOSPI) was down 0.3 per cent at 2,022.97 points from the previous close at 2,029.76.


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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