Segmentation of stock trading customers according to potential value

  • Authors:
  • H. W. Shin;S. Y. Sohn

  • Affiliations:
  • Samsung Economy Research Institute, Kúkje Cener Building, 191, Hangangro 2-Ga, Seoul, South Korea;Department of Computer Science and Industrial Systems Engineering, Yonsei University, Seoul, South Korea

  • Venue:
  • Expert Systems with Applications: An International Journal
  • Year:
  • 2004

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Abstract

In this article, we use three clustering methods (K-means, self-organizing map, and fuzzy K-means) to find properly graded stock market brokerage commission rates based on the 3-month long total trades of two different transaction modes (representative assisted and online trading system). Stock traders for both modes are classified in terms of the amount of the total trade as well as the amount of trade of each transaction mode, respectively. Results of our empirical analysis indicate that fuzzy K-means cluster analysis is the most robust approach for segmentation of customers of both transaction modes. We then propose a decision tree based rule to classify three groups of customers and suggest different brokerage commission rates of 0.4, 0.45, and 0.5% for representative assisted mode and 0.06, 0.1, and 0.18% for online trading system, respectively.