AI Stocks News Today (Dec. 21, 2025): Nvidia, Broadcom and Alphabet Set the Tone for 2026 as Wall Street Weighs Bubble Risks
Dec. 21, 2025 — Artificial intelligence stocks are ending 2025 with a familiar mix of momentum and anxiety: analysts are still pitching semiconductors and “Magnificent Seven” platforms as the cleanest way to play the AI buildout, even as investors debate