For all their potential upsides, value stocks are considered riskier than growth stocks because of the skeptical attitude the market has toward them. For a value stock to turn profitable, the market must alter its perception of the company, which is considered riskier than a growth entity developing. For this reason, a value stock is typically more likely to have a higher long-term return than a growth stock because of the underlying risk.
A value stock may need some time to emerge from its undervalued position. The risk of investing in a value stock is that this emergence may never materialize.