As of the latest data, Apple's P/E ratio is 21.5, which is lower than its previous P/E ratios. However, its PEG ratio is -10.69, indicating potential undervaluation. It's important to note that the PEG ratio is negative, which may suggest that the company's earnings are not meeting expectations. Overall, while the P/E ratio suggests a relatively low valuation, the negative PEG ratio raises concerns about the company's earnings growth potential.