Investors Are Fretting That the Stock-Market Rally Is on Borrowed Time
1. Investors worry the 2025 rally may be unsustainable due to market overheating. 2. Opendoor Technologies surged 413%, highlighted as a meme stock concern. 3. SPACs have raised record amounts, raising fears of a market bust. 4. AI stock rally raises bubble concerns, impacting broader tech sentiment. 5. High valuations in S&P 500 cast doubt on the sustainability of gains.