My friend said that he considers Sheng Siong to be a good stock as the supermarket business is likely to do well in Singapore and this company is more efficient and operate at lower cost compared to Fairprice. 

I made an analysis of this stock (OV8.SI). The financial fundaments are show below. 

The stock has a PE ratio of 16.14 (earning yield of 6.2%) and a dividend yield of 4.37%. Its total debt to equity is 20% (which is low).

However, the stock price dropped by 14% from $1.66 to the current price of $1.42 over the past 6 months.

The historical PE ratio if 16.45 and the prospective PE ratio is 20.88. This suggests that the profit for the next financial year is expected to drop by 20%.

Based on the above fundamentals, I consider that this stock is fairly valued. 

Note - This is a personal opinion. I am not giving investment advice. 

Tan Kin Lian