**NVIDIA holds a narrow edge in trader consensus for the largest company by market capitalization at the end of December 2026, reflecting its entrenched position in AI infrastructure despite recent volatility.** Apple recently reclaimed the top spot with a $5.03 trillion valuation versus NVIDIA’s $4.93 trillion after a late-October selloff in chip stocks driven by concerns over elevated AI capital expenditures and disappointing results from other tech names. NVIDIA’s leadership in GPU demand and data-center spending continues to underpin its 55% implied probability, while Apple’s stronger free-cash-flow trajectory and perceived defensiveness support its 43.7% odds. With only two months remaining, upcoming earnings releases and equity performance will determine whether the current narrow gap narrows or widens before year-end resolution.