KOSPI 200 Index (KOS200)

The Economic Times  Mar 28  Comment 
The Korea Composite Stock Price Index (KOSPI) closed up 0.2 per cent at 1,981.00 points, its highest close since Dec. 30.
The Economic Times  Mar 27  Comment 
The Korea Composite Stock Price Index (KOSPI) closed up 0.7 per cent at 1,977.97 points, the highest close since Feb. 28.
The Economic Times  Mar 27  Comment 
The KOSPI rose 1.2 per cent on Wednesday, notching its biggest one-day gain in more than a month.
The Economic Times  Mar 24  Comment 
The Korea Composite Stock Price Index (KOSPI) closed up 0.6 per cent at 1,945.55 points on Monday, its highest closing level since March 11.
The Economic Times  Mar 10  Comment 
The Korea Composite Stock Price Index (KOSPI) closed down 1 percent at 1,954.43 points on Monday, marking the index's biggest daily loss since February 4.
The Economic Times  Feb 14  Comment 
The Korea Composite Stock Price Index (KOSPI) ended up 0.7 per cent at 1,940.28 points, its highest close since Jan. 29.
The Economic Times  Feb 13  Comment 
The KOSPI has risen 2.6 per cent during its six-day winning streak and now faces resistance at the 1,950-point threshold, the 200-day moving average.
The Economic Times  Feb 12  Comment 
The Korea Composite Stock Price Index (KOSPI) was up 0.5 percent at 1,940.77 points as of 0226 GMT after hitting an intraday high of 1,942.23, highest since January 24.


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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