VAC currently has a forward P/E ratio of 12.42, while TCOM has a forward P/E of 17.89. We also note that VAC has a PEG ratio of 1.82. This popular metric is similar to the widely-known P/E ratio, with the difference being that the PEG ratio also takes into account the company's expected earnings growth rate. TCOM currently has a PEG ratio of 2.67. Another notable valuation metric for VAC is its P/B ratio of 1.17. The P/B ratio is used to compare a stock's market value with its book value, which is defined a ...