Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
PolyGram Pick polygram.ink |
7% | 93% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open on PolyGram → |
Polymarket polymarket.com |
7% | 93% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open on PolyGram → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open on PolyGram → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open on PolyGram → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open on PolyGram → |
Live odds for Polymarket-based markets come from the Polygon order book. Non-Polymarket venues show attributes only; clicking any row opens the market on PolyGram.
Market context
A military invasion by North Korea across the demilitarised zone into South Korean territory remains a low-probability event in the near term, with prediction markets currently pricing the likelihood at 7% through end-2026. Such an offensive would represent a fundamental shift in the peninsula's military posture, as Pyongyang has refrained from large-scale conventional attacks since the 1950–53 Korean War, despite periodic provocations including artillery strikes, naval incidents, and cyber operations. The 4km-wide DMZ remains one of the world's most fortified borders, with South Korea and US forces maintaining substantial defensive capabilities that would impose significant costs on any invasion attempt.
Historical precedent suggests the 7% probability reflects genuine structural constraints rather than complacency. North Korea's 2010 shelling of Yeonpyeong Island killed 50 people but did not escalate to full-scale conflict, whilst the 2020 killing of a South Korean official by North Korean forces similarly remained contained. Analysts note that Pyongyang's survival strategy has centred on nuclear deterrence and economic coercion rather than territorial conquest, a doctrine reinforced by the regime's observation of how conventional military adventurism fared in Iraq and Libya.
Traders should monitor US–China diplomatic signals, particularly any shifts in Beijing's willingness to constrain North Korean behaviour, alongside indicators of regime economic distress or succession instability. Recent reporting from Reuters in November 2024 documented North Korean troops deploying to Russia's war in Ukraine, a development suggesting Pyongyang's strategic focus remains on external revenue generation and great-power alignment rather than Korean peninsula conquest. Significant divergence between the 7% prediction-market price and analyst consensus would likely emerge only following major geopolitical realignment or explicit North Korean military mobilisation signals.
Methodology
We track Will North Korea invade South Korea before 2027? on the five venues with material liquidity for prediction markets. Live odds come from the Polymarket Polygon order book — the only source that ships real-time data under an open licence. For Kalshi, Betfair and Manifold we list platform attributes (fee, KYC, settlement, payment) instead of fabricated odds, because their APIs use non-comparable contract definitions.
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
- 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.
- 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 it cost to trade on PolyGram?
- Zero. PolyGram routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.
- Do I need to KYC for this market?
- Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in 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.
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