Investors interested in Electronics - Semiconductors stocks are likely familiar with Silicon Motion (SIMO Quick QuoteSIMO - Free Report) and Synaptics (SYNA Quick QuoteSYNA - Free Report) . But which of these two stocks presents investors with the better value opportunity right now? Let's take a closer look.

We have found that the best way to discover great value opportunities is to pair a strong Zacks Rank with a great grade in the Value category of our Style Scores system. The proven Zacks Rank puts an emphasis on earnings estimates and estimate revisions, while our Style Scores work to identify stocks with specific traits.

Both Silicon Motion and Synaptics have a Zacks Rank of # 2 (Buy) right now. This system places an emphasis on companies that have seen positive earnings estimate revisions, so investors should feel comfortable knowing that these stocks have improving earnings outlooks. But this is just one piece of the puzzle for value investors.

Value investors also try to analyze a wide range of traditional figures and metrics to help determine whether a company is undervalued at its current share price levels.

The Value category of the Style Scores system identifies undervalued companies by looking at a number of key metrics. These include the long-favored P/E ratio, P/S ratio, earnings yield, cash flow per share, and a variety of other fundamentals that help us determine a company's fair value.

SIMO currently has a forward P/E ratio of 9.13, while SYNA has a forward P/E of 17.03. We also note that SIMO has a PEG ratio of 1.01. This popular figure is similar to the widely-used P/E ratio, but the PEG ratio also considers a company's expected EPS growth rate. SYNA currently has a PEG ratio of 1.70.

Another notable valuation metric for SIMO is its P/B ratio of 3.82. The P/B is a method of comparing a stock's market value to its book value, which is defined as total assets minus total liabilities. By comparison, SYNA has a P/B of 8.10.

Based on these metrics and many more, SIMO holds a Value grade of B, while SYNA has a Value grade of D.

Both SIMO and SYNA are impressive stocks with solid earnings outlooks, but based on these valuation figures, we feel that SIMO is the superior value option right now.