KOSPI 200 Index (KOS200)

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 Economic Times  May 29  Comment 
KOSPI closed down 0.1 percent at 2,352.97 points after touching an intraday record high of 2,371.67.
The Economic Times  May 29  Comment 
South Korea's KOSPI initially touched an intraday record high before pulling back 0.1 per cent.
The Economic Times  May 29  Comment 
The Korea Composite Stock Price Index (KOSPI) was up 0.64 per cent at 2370.27 points as of 0119 GMT.
The Economic Times  May 25  Comment 
Offshore investors bought a net 118.3 billion won ($106.01 million) worth of KOSPI shares for the day.
The Economic Times  May 17  Comment 
The Korea Composite Stock Price Index (KOSPI) was down 0.3 per cent at 2,189.37 points.
The Economic Times  May 12  Comment 
The KOSPI was set to mark the biggest weekly percentage gain since mid-March.
The Economic Times  May 9  Comment 
Asian bourses are reflecting mixed sentiment this morning, as Chinese stocks looked weak while Hang Seng and Kospi were ruling higher.
The Economic Times  Mar 14  Comment 
The Korea Composite Stock Price Index (KOSPI) closed up 0.8 per cent at 2,133.78 points, the strongest since May 26, 2015.


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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