This paper shows that a simple accounting-based fundamental-driven strategy on a
sample of (1) all firms (2) high BM firms and (3) low BM firms, can effectively earn
significant positive future abnormal stock returns. Our sample includes listed firms in the
Stock Exchange of Thailand (SET) and the Market for Alternative Investment (mai) during
1994 to 2008. We employ two investor-friendly composite scores -- VSCORE and
GSCORE, used in Piotroski (2000) and Mohanram (2005), respectively. The composite
scores are the sum of binary scores (1 or 0) marked from each individual financial measure.
VSCORE represents traditional financial measures in three areas: profitability,
leverage/liquidity, and operating efficiency while GSCORE represents profitability measures
14
and growth-oriented measures related to earnings stability, growth stability, capital
expenditures and advertising expenses intensity.