Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax UK) Pick polygram.ink (preferred broker) |
91% | 9% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
91% | 9% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| NVIDIA | 91% |
| Company D | 50% |
| Company B | 50% |
| Company H | 50% |
| Company I | 50% |
| Company N | 50% |
| Company T | 50% |
| Company F | 50% |
| Company L | 50% |
| Company R | 50% |
| Company A | 50% |
| Company G | 50% |
| Company M | 50% |
| Company S | 50% |
| Company C | 50% |
| Company J | 50% |
| Company P | 50% |
| Other | 50% |
| Company E | 50% |
| Company K | 50% |
| Company O | 50% |
| Company Q | 50% |
| Alphabet | 4% |
| Apple | 3% |
| Tesla | 0% |
| Microsoft | 0% |
| Amazon | 0% |
| Broadcom | 0% |
| Saudi Aramco | 0% |
Market context
The real-world event at stake is which corporation will hold the highest market capitalisation globally by the close of trading on 31 July 2026. Current data shows Nvidia leading with approximately $4.53 trillion, followed by Apple at $4.02 trillion and Alphabet at $3.78 trillion, creating a substantial buffer for the frontrunner[1]. The crowd-implied 0% probability for any challenger to overtake Nvidia reflects this historical dominance; in comparable cases, such as Nvidia’s surge past $4 trillion in July 2025 amid the AI frenzy, the leader maintained its position for months despite sector volatility[1].
Traders should monitor upcoming quarterly earnings schedules, interest-rate announcements from the Federal Reserve, and any regulatory shifts affecting AI revenue streams, as these are the primary catalysts for equity swings[2]. Recent market commentary highlights that Alphabet’s stronger AI-driven cloud momentum versus Apple’s stable hardware growth could narrow the gap, though no major reports are due before resolution[2]. For market accessibility, German GlüStV implications and US CFTC reach define the regulatory perimeter, while the ‘no-KYC up to $1,500’ threshold allows retail participants to enter positions without identity verification, provided they stay within this limit. This specific market remains accessible to those navigating these frameworks, though compliance obligations persist beyond the threshold.
Methodology
This overview of Largest Company end of July? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Is Polymarket legal in my country?
- Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Polymarket Tax UK has a different geo footprint.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Polymarket Tax UK stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Tax UK exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
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