NVIDIA be the largest company in the world by market cap on December 31 priced at 63.5% on Polymarket, up 4.0 points, on $1.5M traded
PredictionBubbles' movers board lists the NVIDIA December 31 largest-company contract among its upward finance moves, in a finance category distinct from the lead. It…
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NVIDIA’s contract to be the world’s largest company by market capitalization on December 31 was priced at 63.5% on Polymarket, up 4.0 probability points, with $1.5M traded, according to the supplied market update published Oct 26, 2026, at 7:24 PM ET.
According to PredictionBubbles, the December 31 contract appeared among rising finance markets on its movers board. The gain reflects a higher market-implied probability over the preceding 24 hours, rather than a 4.0% relative increase.
Different deadlines, different contracts
The supplied board text separately identifies a contract asking whether NVIDIA will hold the largest-company position on October 31, 2026 as a category’s biggest mover. That is a different deadline from the December 31 contract highlighted in the update; the two should not be treated as interchangeable.
The material does not identify a company announcement or other specific development behind the December 31 repricing. It also does not specify the measurement period for that contract’s reported $1.5M in trading.
How the board measures movement
PredictionBubbles ranks contracts from Polymarket and Kalshi by their absolute 24-hour probability-point changes, refreshing the board every 15 minutes. The supplied source records a venue-data snapshot of 26 Oct 2026, 22:37 UTC, which precedes the publication time of the market update.
The board’s stated universe comprises 1,991 markets lasting longer than 14 days. Its table displays the top 150 of 503 markets moving at least one probability point. Only open contracts with a valid 24-hour comparison qualify, and trading volume and liquidity do not affect the movement ranking.
What it means for prediction markets
The signal is a repricing: 63.5% is the quoted market-implied probability, not confirmation that NVIDIA will finish December 31 in first place.
Deadline precision matters: The October 31, 2026 contract highlighted elsewhere on the board is distinct from the December 31 market.
Volume provides limited context: The reported $1.5M traded does not, by itself, establish current liquidity or explain the 4.0-point rise.
The catalyst remains unspecified: The supplied material supports reporting the price change, but not attributing it to a particular corporate or market event.