Technology / 1 MIN READ
Prediction markets now price a 58 percent chance the chipmaker retains its position through month-end amid volatile trading.
Market data
Current live odds
Will NVIDIA be the largest company in the world by market cap on July 31?
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© 2026 Prediction Market Network. Market data references Polymarket and Kalshi and may change rapidly.
NVIDIA stands as the world's most valuable company at approximately $5.0 trillion in market capitalization as of July 17, but prediction markets assign only a 58 percent probability that it will hold that position through the close of trading on July 31. The odds have declined 12 percentage points in the past 24 hours, reflecting growing uncertainty about whether Microsoft, Apple, or another rival could overtake the chipmaker in the final two weeks of July.
The Santa Clara-based semiconductor manufacturer reached $5.019 trillion on July 16 and held near that level through midweek, according to multiple market-data aggregators. That figure represents a sharp climb from $4.84 trillion recorded on June 23, underscoring the velocity of NVIDIA's recent ascent. The company first crossed the $2 trillion threshold in 2024, then doubled that valuation in less than two years as demand for artificial intelligence accelerators reshaped the technology sector's hierarchy.
Market-cap leadership remains fluid because it depends on both share price and outstanding share count, meaning a modest swing in either NVIDIA or a close competitor could flip the ranking before month-end. Microsoft and Apple have each held the top spot at various points in recent years, and their valuations currently trail NVIDIA by margins narrow enough that a single strong earnings report or macroeconomic headline could alter the order. The Polymarket contract attracted $75,694 in trading volume over the past day, indicating active interest in the outcome.
The July 31 deadline makes this a snapshot question rather than a sustained-leadership test. Intraday moves are irrelevant; only the closing market capitalization on that date determines the result. Traders who locked in yes positions earlier in the month now face the prospect of two additional weeks of volatility, including potential earnings announcements and Federal Reserve commentary that could sway investor sentiment across the megacap cohort. With the probability hovering near coin-flip territory, the final fortnight of July will decide whether NVIDIA's summer rally translates into a month-end victory.