Is Palantir's growth enough to offset its expensive valuation?Palantir Technologies (PLTR +2.19%) has been one of the most popular artificial intelligence (AI) stocks since 2023. Its share price has more than doubled every year since then, and there is reason to think it will remain a popular pick heading into 2026.Its strong performance has led enthused investors, and that has led to a rising valuation, making it a potentially overvalued stock. On the other hand, Palantir's growth is accelerating, and with ...