Trump-Xi Summit: What will Trump announce by May 22?

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Market context

Polymarket has this contract at 29% YES, which implies traders think a tariff cut on China is possible but still far from the base case. Because the market settles in USDC on Polygon via conditional tokens, only a clear announcement by Trump or the administration counts: a reduction, removal or suspension of an existing China tariff, not broader trade talk or vague openness. With the settlement window ending later today, price action is effectively a read on whether the White House will turn the Beijing summit into a concrete tariff move before the clock runs out.

The main comparison is the trade pattern from Trump’s first term, when tariff threats, truces and partial rollbacks were used as negotiating leverage rather than as routine policy. That history matters because markets often overprice summit optics and underprice the need for a formal, specific tariff announcement. The recent White House fact sheet on the Beijing visit focused on agricultural purchases, Boeing orders and new U.S.-China trade and investment boards, but did not signal tariff relief. That leaves this market dependent on a sharper follow-through than the usual communiqués, especially after the summit generated agreements on commercial deals without an obvious tariff concession.

For traders, the key catalysts are any White House statement, USTR release or presidential social post that explicitly references a China tariff suspension or cut, as well as any last-minute briefing tied to the Beijing talks. Recent reporting from PBS NewsHour and the White House material suggests the administration was focused on purchases, investment access and a tariff truce rather than an outright reduction, so the distinction between “pause” and “cut” is crucial. If no definitive tariff language appears before settlement, the contract resolves No even if broader China diplomacy continues.

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Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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.