Next Prime Minister of Sweden

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Market context

Parliamentary elections in Sweden are set for 13 September 2026, when 349 members of the Riksdag will be chosen to elect the next Prime Minister. The current crowd-implied probability of 0% for any specific candidate reflects the fluidity of coalition negotiations that typically follow such votes, rather than a lack of viable contenders.

Historically, Swedish prime ministerial appointments hinge on complex multi-party bargains, much like the Eurovision model where jury and public votes split the outcome. Recent precedent shows that even frontrunners like Socialdemokraterna, currently at 32.4% in polls[2], rarely secure office without forming a coalition, as seen in 2022 when no single party won a majority. This structural necessity explains why markets assign near-zero probability to individuals before the election results are finalised.

Traders should monitor coalition announcements from Moderaterna and Sverigedemokraterna, whose combined 36.6% share could reshape the landscape. Key catalysts include the official election date confirmation on 13 September[1] and any emerging foreign malign influence reports, as the Swedish government has activated agencies to protect the 2026 elections[4]. The latest PolitPro trend shows Kristdemokraterna gaining momentum with a +0.5% rise over 30 days[2], a shift that could alter coalition math. Watch for formal candidate nominations by the Riksdag, which will determine the official appointment timeline.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Next Prime Minister of Sweden across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at PolyGram — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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

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.

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.

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.