Falling P/E Ratios for Nvidia, Samsung Don't Guarantee Undervaluation

The sharp rise in earnings for Nvidia and Samsung Electronics has led to a decline in their price-to-earnings (P/E) ratios, but this does not necessarily mean that these companies are undervalued.

A lower P/E ratio can result from rising earnings rather than a decrease in share price. In the case of Nvidia, its EPS has increased rapidly, while its P/E ratio has fallen to around 18, its lowest level since 2019.

Samsung's P/E ratio has also dropped significantly, from around 15 last year to about 4. However, unlike Nvidia, Samsung's earnings growth is driven by the cyclical memory chip market, which makes it difficult to determine whether current profits can be sustained.

Investors must examine the sustainability of already elevated profits and consider whether the earnings underlying a low P/E ratio are durable. A combination of sustained earnings and a higher valuation multiple could provide further support for the share price, but conversely, if earnings growth begins to weaken, the stock price could fall despite a seemingly low P/E ratio.