The Effect of Size on Stock Returns in an Emerging Financial Exchange
This study examines the effect of firm size on excess stock returns with time
variant factor of January and July. Broadly speaking, the extant literature finds
negative relationship of firm size with stock returns. Smaller firms enjoy higher
risk adjusted returns. This study investigates all the firms listed on the Pakistan
Stock Exchange (PSX). Monthly data is used from January 2007 to November
2018; firm-level monthly closing stock price, KSE-100 index values, market
capitalization are main variables of this study. Pooled Ordinary Least Squares
(POLS) and firm Fixed-Effects (FE) regression techniques are applied, and results
suggest that size of the firm is negatively and significantly related to the stock
returns, i.e., our analysis confirms the presence of a size effect within the Pakistani
equity market. The evidence suggests that investors demand higher premium
while investing in small capitalized stocks. Moreover, little research has been
conducted to investigate the presence of firm size effect on stock return in capital
market of Pakistan. Besides, the market structure and regulatory environment of
PSX is quite different from many emerging markets of the world, such as
sophistication level of retail investors and presence of narrow price limits; hence
that demands further investigation. Lastly, our approach is more robust as we have
taken more than 340 firm-level excess stock returns data to check the size premium
Firm Size Effect, Stock Returns,Pakistan Stock Exchange (PSX), Market Anomalies, Month-Effect
Amihud, Y. (2002). Illiquidity and stock returns: cross-section and time-series effects. Journal of Financial Markets, 5(1), 31-56.
Banz, R. W. (1981). The relationship between return and market value of common stocks. Journal of Financial Economics, 9(1), 3-18.
Bettman, J. L., Ng, W. S. K., & Sault, S. J. (2011). The economic significance of trading based on the size effect in Australia. Australian Journal of Management, 36(1), 59-73.
Bondt, W. F., & Thaler, R. (1985). Does the stock market overreact? The Journal of Finance, 40(3), 793-805.
Chaibi, A., Alioui, S., & Xiao, B. (2014). On The Impact of firm size on risk and return: Fresh evidence from the American Stock Market over the recent years. Journal of Applied Business Research, 31(1), 29-36.
Chui, A. C., & Wei, K. J. (1998). Book-to-market, firm size, and the turn-of-the-year effect: Evidence from Pacific-Basin emerging markets. Pacific-Basin Finance Journal, 6(3), 275-293.
Fama, E. F., & French, K. R. (2012). Size, value, and momentum in international stock returns. Journal of Financial Economics, 105(3), 457-472.
Fama, E. F., & French, K. R. (2008). Dissecting anomalies. The Journal of Finance, 63(4), 1653-1678.
Fama, E. F., & French, K. R. (1995). Size and bookвЂђtoвЂђmarket factors in earnings and returns. The Journal of Finance, 50(1), 131-155.
Gandhi, P., & Lustig, H. (2015). Size anomalies in US bank stock returns. The Journal of Finance, 70(2), 733-768.
Gaunt, C., Gray, P., & McIvor, J. (2000). The impact of share price on seasonality and size anomalies in Australian equity returns. Accounting & Finance, 40(1), 33-50.
Goyal, A. (2017). No Size Anomalies in US Bank Stock Returns. Available at SSRN 2410542.
Henker, J., & Paul, D. J. (2012). Retail investors exonerated: the case of the January effect. Accounting & Finance, 52(4), 1083-1099.
Hearn, B. (2012). Size and liquidity effects in African front equity markets. Applied Financial Economics, 22, 681-707.
Hearn, B. (2010). Time varying size and liquidity effects in South Asian equity markets: A study of blue-chip industry stocks. International Review of Financial Analysis, 19(4), 242-257.
Ho, Y. W., Strange, R., & Piesse, J. (2000). CAPM anomalies and the pricing of equity: evidence from the Hong Kong market. Applied Economics, 32(12), 1629-1636.
Hou, K., & Van Dijk, M. A. (2019). Resurrecting the size effect: Firm size, profitability shocks, and expected stock returns. The Review of Financial Studies, 32(7), 2850-2889.
Hwang, T., Gao, S., & Owen, H. (2014). Markowitz efficiency and size effect: evidence from the UK stock market. Review of Quantitative Finance and Accounting, 43(4), 721-750.
Keim, D. B. (1983). Size-related anomalies and stock return seasonality: Further empirical evidence. Journal of Financial Economics, 12(1), 13-32.
Kraft, H., Schwartz, E., & Weiss, F. (2018). Growth options and firm valuation. European Financial Management, 24(2), 209-238.
Loughran, T., & Ritter, J. R. (1996). LongвЂђTerm Market Overreaction: The Effect of LowвЂђPriced Stocks. The Journal of Finance, 51(5), 1959-1970.
Mazviona, B. W., & Nyangara, D. (2014). Does firm size affect stock returns? Evidence from the Zimbabwe Stock Exchange. International Journal of Business & Economic Development, 2(3), 13-17.
MinoviД‡, J., & ЕЅivkoviД‡, B. (2012). The impact of liquidity and size premium on equity price formation in Serbia. Economic Annals, 57(195), 43-78.
Mirza, N., & Shahid, S. (2008). Size and value premium in Karachi stock exchange. Lahore Journal of Economics, 13(2), 1вЂ“26.
Officer, R. R. (1975). Seasonality in Australian capital markets: Market efficiency and empirical issues. Journal of Financial Economics, 2(1), 29-51.
Reinganum, R. M. (1983). The Anomalous Stock Market Behavior of Small Firms in January: Empirical Tests of Tax Loss Selling Effects. Journal of Financial Economics, 12, 89-104.
Ritter, R. J. (1988). The Buying and Selling Behavior of Individual Investors at the Turn of the Year. Journal of Finance, 43, 701-717.
Roll, R. (1988). Vas Ist Das? The Turn-of-the-Year Effect: Anomaly or Risk Mismeasurement? Journal of Portfolio Management, 9, 18-28.
Shah, S., Tahir, S. H., Anwar, J., & Ahmad, M. (2016). Does size matter in determining firms' performance? A comparative analysis of listed companies. City University Research Journal, 6(2), 344-353.
Tahir, S. H., Sabir, H. M., Alam, T., & Ismail, A. (2013). Impact of firmвЂ™s characteristics on stock returns: A case of non-financial listed companies in Pakistan. Asian Economic and Financial Review 3(1), 51-61.
Yu, L., Liu, X., Fung, H. G., & Leung, W. K. (2020). Size and value effects in high-tech industries: The role of R&D investment. The North American Journal of Economics and Finance, 51(1), (in press).