CNBC Daily Open: Tech sell-off? Investors could just be taking profit and enjoying the summer
1. Tech stocks, including S&P 500 components, drag markets lower for two days. 2. Palantir doubled this year but faces a six-day losing streak. 3. Investors may be locking in profits from tech's strong run. 4. Warnings from OpenAI CEO about an AI bubble could affect market sentiment. 5. Concerns over tech fundamentals emerge amidst profit-taking behavior.