Largest Company end of June?

Platform comparison

Active sub-markets

Market context

The underlying event is the determination of which corporation holds the highest market capitalisation globally on 30 June 2026, with current markets pricing a near-certain outcome for NVIDIA. Historical precedent shows that once a tech giant surpasses the $4 trillion threshold, it rarely relinquishes the top spot without a catastrophic sector shift; NVIDIA achieved this milestone in July 2025 amid the AI frenzy and has maintained a lead of over $500 billion against Apple since [2]. Comparable cases from the 2020s, where Microsoft and Apple traded the lead, involved valuations under $3 trillion, whereas the current disparity between the top two firms suggests a structural dominance that aligns with the 99% implied probability [1][2].

Traders should monitor NVIDIA’s upcoming chip announcement schedules and any regulatory dependencies that could impact its supply chain, as these are the primary catalysts for valuation changes. Recent reporting confirms NVIDIA’s market cap has reached $5.23 trillion, significantly outpacing Alphabet and Apple, making a reversal unlikely absent a major earnings miss or geopolitical intervention [6]. From a regulatory overview, German GlüStV implications and US CFTC reach define the compliance framework for such markets, while the 'no-KYC up to $1,500' threshold allows broader accessibility for participants without stringent identity verification, provided they remain within the specified limit. This accessibility does not alter the market’s resolution but expands the pool of potential traders engaging with the consensus of credible reporting that will determine the final outcome [1][2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Largest Company end of June? on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.