Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 4.3-4.6% | 100% |
| <4.0% | 0% |
| 4.0-4.3% | 0% |
| 4.6-4.9% | 0% |
| 4.9-5.2% | 0% |
| 5.2-5.5% | 0% |
| 5.5-5.8% | 0% |
| 5.8-6.1% | 0% |
| 6.1%+ | 0% |
Market context
China’s National Bureau of Statistics released Q2 2026 GDP growth at 4.3% year-on-year on 15 July, the weakest quarterly print since late 2022 and below the market’s 4.5% consensus forecast [1][2]. The figure fell short of analysts’ expectations as weak domestic demand and an oil shock linked to the Iran war offset stronger production and exports [3]. This outcome mirrors the post-pandemic trough of Q4 2022 (2.9%) and underscores persistent imbalances despite the first-half average of 4.7% staying within Beijing’s 4.5–5.0% annual target [2][4].
On prediction markets, the contract “China GDP growth (Y/Y) in Q2 2026?” shows a 0% implied probability for a YES outcome, while Polymarket’s frontrunner bracket “4.3–4.6%” trades at 100%, aligning with the official print [7]. This diverges from Goldman Sachs’ earlier full-year 2026 forecast of 4.8%, which assumed a narrowing property drag and surging exports [8]. Traders should monitor the next quarterly release schedule, any stimulus announcements from the Politburo, and commodity-price movements tied to the oil shock, as these will shape Q3–Q4 momentum [3][5]. The Reuters poll of 54 economists had trimmed its Q2 consensus to 4.5% by April, making the 4.3% miss a clear downside signal for global growth appetite [5].
Methodology
This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to PolyGram, which mirrors the Polymarket order book directly.
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.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- 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.
- 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.
Trade China GDP growth (Y/Y) in Q2 2026? on PolyGram
Live order book, 0% fees, USDC settlement in seconds.
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