Biggest Polymarket books are global: Brazil and Netanyahu lead

Brazil and Netanyahu lead the largest books

International politics leads the largest Polymarket books in the supplied summary. The Brazil market has $180.0M traded, with Bolsonaro priced at 88%. The market on Netanyahu leaving office by end-2026 has $124.5M traded, with No at 63%.

Those figures describe different kinds of conviction: Bolsonaro carries a strong favorite’s price in the Brazil book, while traders favor Netanyahu not leaving office by the stated deadline. The summary does not provide the Brazil contract’s exact question or settlement terms.

Venezuela deadlines lose ground

Elsewhere, according to rg.org, the market tracking opposition leader and Nobel Peace Prize winner María Corina Machado’s return to Venezuela has traded $6.6 million. At 1:02 a.m. ET on Oct. 11, 2026, the Oct. 15 deadline stood at 6%, Oct. 31 at 13% and Dec. 31 at 36%, down from 7%, 19% and 46% early on Saturday.

Rg.org reported no confirmed explanation for those declines. Machado left Venezuela in December 2025 and is based in Panama. Her team says at least seven attempts to return, using air and sea routes, have been blocked. Speaking in Panama City on Saturday, she reiterated her intention to return as soon as possible without setting a date.

Diplomacy remains a smaller-probability outcome

According to rg.org, a final US-Iran nuclear agreement by Dec. 31 was priced at 14% in a market with $19.9 million traded; the Oct. 31 deadline stood at 2%. A June memorandum of understanding subsequently fell apart, while President Donald Trump said on Thursday that the blockade would continue.

The report also identified developments that could affect those prices. Vice President JD Vance has called for a reduction in enrichment, language experts quoted by Al Jazeera interpreted as softer than the earlier demand to end it. Foreign Minister Abbas Araghchi said on Thursday that Iran would respond to the latest US position within a few days.

What it means for prediction markets

• Volume and probability measure different things. Brazil’s $180.0M and the Netanyahu market’s $124.5M indicate trading activity; the 88% and 63% figures reflect prices on particular outcomes.
• Contract wording matters. Netanyahu’s 63% applies to No on departure by end-2026. The Brazil summary lacks the precise question, limiting interpretation of Bolsonaro’s 88%.
• Deadlines shape the pricing. Machado’s return and a final US-Iran deal carry substantially different probabilities across their available deadlines.
• The snapshots are not necessarily simultaneous. Rg.org dates its quoted prices to Oct. 11, 2026; the supplied Brazil and Netanyahu summary accompanies the Oct 12, 2026 · 11:54 AM ET publication.