Next Prime Minister of Sweden

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Market context

Parliamentary elections in Sweden are set for 13 September 2026, when the Riksdag will elect the next Prime Minister. The market’s current 0% crowd-implied probability reflects the fact that no candidate has yet been officially appointed or assumed office, as resolution requires formal assumption of power post-election, not pre-campaign speculation.

Historically, Swedish prime ministerial transitions follow a clear pattern: the Riksdag elects the PM shortly after election results are finalised, with interim caretakers excluded from resolution. Comparable cases from 2018 and 2022 show that even when coalition negotiations are protracted, the elected PM is confirmed within weeks, framing today’s 0% as a technical placeholder rather than a predictive signal.

Traders should monitor three catalysts: the release of final opinion polls over the next 80 days, the official announcement of coalition scenarios, and the Riksdag’s formal election vote, expected within days of 13 September. Recent polling updates from PolitPro indicate shifting voter intentions, with coalition scenarios evolving rapidly as the election approaches[3]. The vote count will be live on val.se on election evening, providing the definitive data for market resolution[2]. Programmatic approaches should condition orders on these milestones, using API feeds from val.se and PolitPro to trigger trades as probabilities shift post-election.

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). 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.

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.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.