Will China invade Taiwan by December 31, 2027?

Platform comparison

Market context

Polymarket is pricing this contract at about **12% YES**, which means traders are still assigning a large majority chance that China does **not** launch a qualifying military offensive against Taiwan by 31 December 2027[1]. On Polygon, the market is settled through conditional tokens backed by USDC, so the price reflects live trading rather than a static forecast: if the event occurs, the correct side redeems at $1, and if it does not, the “No” side does[1].

That 12% sits below the long-running public debate about the so-called “2027 window”. Recent US intelligence assessments have said Chinese leaders do not currently plan to execute an invasion in 2027 and do not have a fixed timeline for unification, while also warning that Beijing will keep applying coercive pressure around Taiwan[2][10][12]. That combination matters for market pricing: traders are not only weighing invasion risk, but also the possibility that China continues with military signalling, exercises, cyber pressure, or blockade-style activity that falls short of the market’s specific resolution standard.

The main catalysts are likely to be official statements, major PLA drill schedules, and any shift in US, Taiwanese, or allied defence postures. A trader should watch for changes in cross-strait diplomacy, arms deliveries, and intelligence briefings, because these can move sentiment without necessarily changing the underlying odds of outright invasion[1][14]. Recent reporting has also kept attention on the intelligence community’s view that Beijing is more likely to pursue coercion than a 2027 attack, which helps explain why the contract remains far below even-money territory[2][10].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.