Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via March Madness Predictions) Pick polygram.ink (preferred broker) |
85% | 15% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
85% | 15% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| NVIDIA | 85% |
| Company A | 50% |
| Company B | 50% |
| Company C | 50% |
| Company D | 50% |
| Company E | 50% |
| Company F | 50% |
| Company G | 50% |
| Company H | 50% |
| Company I | 50% |
| Company J | 50% |
| Company K | 50% |
| Company L | 50% |
| Company M | 50% |
| Company N | 50% |
| Company O | 50% |
| Company P | 50% |
| Company Q | 50% |
| Company R | 50% |
| Company S | 50% |
| Company T | 50% |
| Other | 50% |
| Apple | 10% |
| Alphabet | 4% |
| Microsoft | 0% |
| Tesla | 0% |
| Saudi Aramco | 0% |
| Amazon | 0% |
| Broadcom | 0% |
Market context
NVIDIA currently holds the title of the world’s largest company by market capitalisation, valued at approximately $4.7 trillion as of July 2026, sitting ahead of Apple and Alphabet [1]. This dominance has persisted since the chipmaker ascended to the top spot in 2024, driven by insatiable demand for AI semiconductors and sustained hyperscaler spending on data centres [5]. Historical patterns show that once a technology leader secures such a wide valuation gap—often exceeding $200 billion over the runner-up—it rarely relinquishes the position within a single quarter unless facing a catastrophic product failure or regulatory shock, which aligns with the crowd-implied 92% probability for NVIDIA retaining the lead.
Traders should monitor NVIDIA’s upcoming Rubin platform launch schedule and any announcements regarding data-centre revenue growth, as these act as primary catalysts for sustaining its valuation edge [5]. The market also remains sensitive to Apple’s quarterly earnings reports and Alphabet’s AI integration progress, though both currently trail NVIDIA by over $300 billion in market cap [1]. A key dependency is the continued flow of capital into AI infrastructure; any slowdown in hyperscaler spending could narrow the gap, but current trends suggest robust growth through mid-2026 [5]. Beat reporters covering semiconductor supply chains, such as those at Bloomberg or Reuters, will provide the earliest signals of shifts in NVIDIA’s production capacity or pricing power.
The settlement window closes on 31 July 2026, with resolution based on a consensus of credible reporting on market cap at close [4]. Given NVIDIA’s $4.7 trillion valuation versus Apple’s $4.5 trillion, the lead is substantial but not immune to volatility in the final weeks of July [1]. Traders should watch for any unexpected regulatory actions against US tech firms or sudden shifts in global semiconductor demand, which could alter the trajectory before settlement.
Methodology
Sports-specific comparison page for Largest Company end of July?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.
Resolution & payout
Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.
FAQ
- Are prediction markets better than sports betting?
- Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.
- When do sports markets resolve?
- Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.
- How fast do sports winnings settle?
- Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.
- What's the difference between match odds and outright odds?
- Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.
- Can I import form data and lineups?
- This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.
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