TEF currently has a forward P/E ratio of 14.22, while TU has a forward P/E of 21.25. We also note that TEF has a PEG ratio of 0.83. This figure is similar to the commonly-used P/E ratio, with the PEG ratio also factoring in a company's expected earnings growth rate. TU currently has a PEG ratio of 5.05. Another notable valuation metric for TEF is its P/B ratio of 1.2. Investors use the P/B ratio to look at a stock's market value versus its book value, which is defined as total assets minus total liabilities ...