NVIDIA be the largest company in the world by market cap on December 31 priced at 63.5% on Polymarket, down 4.5 points, on $1.5M traded

NVIDIA’s year-end odds retreat

The Polymarket contract on whether NVIDIA will be the world’s largest company by market capitalization on December 31 was priced at 63.5%, down 4.5 percentage points, in the Oct 29, 2026 · 3:39 AM ET snapshot. Total traded volume stood at $1.5M.

The price still places that outcome above an even chance, despite the decline. It measures traders’ expectations for NVIDIA’s year-end ranking, not a change in the company’s market capitalization.

Limited evidence of a fresh catalyst

The supplied news summary identified no significant new platform headline in the preceding 30 minutes. It does not establish a catalyst for the NVIDIA contract’s move.

According to predictionbubbles.net, its finance board reports probability changes over the last 24 hours and refreshes its data every 15 minutes. Those intervals matter: a displayed move can reflect trading over a much longer period than the latest news-search window.

PredictionBubbles says it aggregates prices from Polymarket and Kalshi, with 195 finance markets in the supplied page: 178 from Polymarket and 17 from Kalshi. The source excerpt provides that board-level context but does not include a NVIDIA-specific price history or resolution criteria.

What it means for prediction markets

• A lower price, but still above 50%: The 63.5% reading indicates NVIDIA remains more likely than not to meet the contract’s condition in market pricing; it is not a guaranteed outcome.
• Volume is not recent flow: The $1.5M figure is total traded volume, not the amount traded during the decline or the latest 30-minute window.
• Causation remains unverified: The supplied material does not link the 4.5-point fall to a particular news event.
• Contract details matter: Without the NVIDIA market’s resolution criteria, the supplied excerpt does not establish how its December 31 ranking will be determined.