Is Factor Investing Sustainable after Price Impact Costs? The Capacity of Factor Investing in Korea

Jungmu Kim and Yuen Jung Park
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Jungmu Kim: Department of Business Administration, Yeungnam University, Gyeongsan 38541, Korea
Yuen Jung Park: Department of Finance, College of Business, Hallym University, Chuncheon 24252, Korea

Sustainability, 2019, vol. 11, issue 17, 1-21

Abstract: This study investigates whether the profitability of various factor investments is sustainable after costs due to price impact, and estimates the capacity of strategies in the Korean stock market. With various initial amounts invested as of the end of December 2000, we analyze after-cost-returns on factor investing during the period from January 2000 to December 2017, and estimate the break-even fund size and maximal profit fund size. To this end, whenever rebalancing factor-investment portfolios based on trading rules, the number of shares of stocks to be bought and sold is computed and the price impact costs of the transactions are taken into account. This procedure computes the implicit cost of trading of factor investing to produce after-cost-returns for various initial amount invested. While the momentum and value factors perform well before price impact costs, the profitability factor performs better after price impact costs. More specifically, the break-even fund size is estimated to be 1.4 trillion Korean won (KRW), and the maximal profit generating fund size is estimated to be 750 billion KRW which could attain a monthly net profit of 1.9 billion KRW over the sample period.

Keywords: fund capacity; factor investing; pension fund; price impact; sustainable profit (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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