Key Points The S&P 500 keeps getting more expensive. Some investors think there is a bubble in AI stocks. Emerging technology stocks, on the other hand, look unjustifiably expensive. 10 stocks we like better than Oklo › It's been nearly three years since ChatGPT was launched, and stocks have been rallying at breakneck speed ever since. Since the start of 2023, the S&P 500 (SNPINDEX: ^GSPC) is up a whopping 73%, and even a brief plunge on tariff concerns hasn't been able to slow it down. Paced ...