Icelandic European Union membership negotiations referendum passes?

ResolutionResolved NO

YES payout0¢

NO payout100¢

VenuePolymarket

Realized · held to resolution−100%$100 paper stake

Polymarket42¢ → 0¢

Our position · YES42¢ → 0¢

Signal endedSep 3

Forecast updated

Aug 27 forecast

The latest national survey still gives Yes a narrow lead, so passage of the negotiations referendum is favored but far from guaranteed.

Yes has led in repeated recent surveys, and the ballot asks only whether to reopen negotiations, limiting the immediate commitment voters must make. Economic and geopolitical concerns give supporters a positive case. However, the lead has steadily narrowed, other polling has been tied or slightly No-leaning, and fisheries, farming, and sovereignty concerns remain potent. With many voters deciding late, a small shift could reverse the result.

Points to YES

A small but persistent Yes edge makes passage more likely because No must still erase the remaining lead before voting ends.
The August 21–25 Maskína survey of 1,019 respondents found 51.3% for Yes and 48.7% for No after weighting for major demographic characteristics.
Presenting the ballot as permission to negotiate rather than a final membership decision lowers the commitment barrier for uncertain voters and supports Yes.
On August 26, the prime minister described the referendum as an opportunity to obtain negotiated terms rather than a final decision on EU membership.
High borrowing costs make the prospect of closer European integration and eventual monetary stability more attractive, giving economically concerned voters a reason to support talks.
On August 26, reporting noted that the central bank had raised rates three times during 2026 to 8%, making possible euro adoption attractive to some indebted households.

Points to NO

The steady erosion of the Yes lead raises the chance that continued late movement will put No ahead by election day.
Maskína measured Yes at 53.1% in June, 53% in late July, 52.2% on August 13, and 51.3% during August 21–25.
Fisheries, farming, and sovereignty concerns provide No with a concrete closing argument that could mobilize rural and industry-linked voters.
On August 26, opposition campaigning focused on sovereignty and control over fisheries and farming, while seafood and marine products were reported to represent about 40% of Icelandic exports.
A large late-deciding electorate makes the narrow Yes lead fragile and leaves substantial room for a final campaign shock or turnout imbalance.
In remarks published August 17, Maskína’s managing director said Icelandic election research indicated that about 20% of voters decide on election day.

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