Santa Claus Rally 2025: AI Jitters, Fed Signals and Global Central Banks Put Wall Street’s Year-End Bounce to the Test
December 15, 2025 — The market’s most persistent seasonal storyline is back: will the “Santa Claus rally” save the final stretch of the year, or is Wall Street about to get a lump of coal? As the last full trading week of 2025 begins, investors are trying to stabilize after a tech-led slide last week—while juggling a rare mix of cross-currents: delayed U.S. economic data due to the government shutdown, multiple major central bank decisions, renewed worries about an AI-driven capex bubble, and fresh tremors from China’s property market. Reuters+2Reuters+2 Wall Street starts the week cautiously higher—while the “AI trade”