April 27, 2026

1. Prediction market

Polymarket closed April 27 with Flávio Bolsonaro crossing 40% for the first time in the cycle. Rose from 39.15% to 40.30% (+1.15pp). Lula fell from 37.5% to 35.5% (-2pp) — first significant drop in three days. The gap widened to 4.8pp in favor of Flávio, the largest margin of the cycle in the senator's direction. In four days, the gap went from +0.55pp Lula (Apr 24) → +4.15pp Flávio (Apr 25) → +0.35pp Lula → +0.45pp Flávio → +1.65pp Flávio → +0.3pp Flávio → +4.8pp Flávio.

The third way had a record day. Romeu Zema (Novo) consolidated absolute lead in the "third place in 1º turno" market: 40.5% (+3pp in 24h) — new cycle high. In the presidential, retreated slightly to 9.45% (-0.4pp). Ronaldo Caiado gave back part of the previous day's jump: fell from 27% to 24% in the "third place" market. Renan Santos recovered from 25% to 26.5%. In the presidential, Renan held at 5.5% — completed the 11th consecutive day with no public statement.

In the "second place in 1º turno" market, Fernando Haddad recovered violently: 2.4% (Apr 26) → 5.8% (+3.4pp) — return to a competitive level after five days of extreme decline. Flávio stabilized at 66.5% (+0.5pp). Lula held 17%. Zema stayed at 3.45%.

STF justice impeachment fell from 16% to 11% (-5pp) — the largest drop of the cycle in 24 hours, with yesterday's historic peak undone. 13-day trajectory: 13.5% → 11% → 12% → 12.5% → 12.5% → 14% → 14% → 14% → 15.5% → 15% → 15% → 16% → 11%. In the Senate, PL retreated slightly from 83.5% to 81.5% (-2pp). And three parties recovered simultaneously: PSD rose from 3.85% to 6.55% (+2.7pp), MDB from 1.7% to 3.35% (+1.65pp), and PT from 1% to 2.65% (+1.65pp). Symmetrical move to yesterday's collapse — the market seems to be testing hypotheses throughout the bomb-day.

In inflation expectations, the tails opened: the 3.50-3.99% band surged 4.45pp to 7.6%. The <3.00% and 3.00-3.49% bands also rose (+1.8pp and +0.7pp). The central 5.00-5.49% band fell 3.65pp to 37.15%, and 7%+ rose to 5%. The market priced greater dispersion around the base scenario.

2. What the institutes registered

The TSE database reached 201 polls indexed. The week's calendar entered its peak: Apr 27 (~6,700 respondents) just closed, and Apr 28 will bring the largest sample of the cycle (AtlasIntel n=5,000 + 2 Quaest + 3 others = ~10,700).

The day's anchor poll was Nexus/BTG Pactual, published around 11:00 by seven outlets: CNN Brasil, Folha de S.Paulo, Estadão, Estado de Minas, Poder360, Congresso em Foco, and CartaCapital. Results: 1º turno Lula 41% × Flávio 36% (Lula leads by 5pp); 2º turno Lula 46% × Flávio 45% — empate técnico also valid for Zema, Caiado, and Renan, according to CNN Brasil. Rejection of both candidates: 48%. Brasil 247 recorded that "the empate técnico in the runoff sets off an alert for Lula."

The AtlasIntel published earlier continued to be digested by the press: VEJA published an analysis "three points of attention," Revista Fórum also reverberated, and Terra Brasil Notícias recorded that "another poll projects Flávio Bolsonaro's victory over Lula" — distinct reading from Nexus.

The Quaest/Genial published a massive state package: RJ governor (Eduardo Paes leads 1º turno — CBN, Estadão, O Globo, Poder360); RJ Senate (Castro and Benedita lead — CartaCapital, CNN, G1); PR governor (Moro leads scenarios — SBT, Gazeta do Povo); PR Senate (Gazeta do Povo, VEJA, CartaCapital); PA governor + Senate (Daniel Santos × Hana Ghassan in empate técnico — Estadão, Gazeta do Povo, CNN). It is the largest Quaest state coverage of the cycle.

3. What the press covered

The day's agenda was crossed by three blocks: sealing the Tarcísio-Flávio alliance, divergent readings of the polls, and deceleration of the STF topic.

Folha de S.Paulo, G1, Estadão, and CNN Brasil covered in parallel the first joint pre-campaign event between Flávio Bolsonaro and Tarcísio de Freitas. In two distinct statements on the same day, Tarcísio said that "Flávio will be the next president" (G1, 19:24) and that he himself "has the capacity to be president and will be one day" (CNN Brasil, 15:11). It is the public confirmation of the alignment that had been signaled since April 24 ("pure bolsonarist ticket" in SP). G1 recorded Flávio praising André do Prado for the São Paulo Senate, but conditioning PL's second name.

On the government side, Folha de S.Paulo covered Haddad calling Flávio "Bolsonarinho" — narrative maintained since April 26. SBT News reported that PL itself reacted to "BolsoMaster" stating that "Flávio Bolsonaro's performance causes discomfort in the government" — a phrase that reflects tension within the opposition coalition. Diário do Povo recorded that PL denied Flávio's involvement in the Banco Master case after a PT video — defensive against government's offensive.

In the Judiciary, Agenda do Poder reported at 11:47 that the action on the Banco Master parliamentary inquiry has been stalled for a month at the STF. SBT News published at 19:40 that STF justices bet that Jorge Messias will be approved with a score close to that of Cristiano Zanin Dino — sign of a cohesive Court. Blog do Ricardo Antunes recorded that a partner of an investigated consultancy received R$4 million from the "Farra do INSS" — side scandal. The combination of these three pieces appears to explain part of the drop in the "STF impeachment" market — the market priced an institutional scenario "calm" for the coming months.

As a side topic, O Globo recorded that the Rio PT announced support for Paes for governor and Benedita for Senate (maintained). And Poder360 reported that the PT counts 12 mobilized regional platforms. OpiniãoCE recorded that Camilo Santana stated "Lula will climb the ramp for the fourth time" and dismissed his own presidential candidacy.

4. Divergences of the day

In summary

1. For the first time in the cycle, Flávio crossed 40% on Polymarket (40.30%) and opened the largest gap of the cycle over Lula (4.8pp). On the same day, the first major national poll of the bomb-day sustained Lula in the 1º turno by 5pp. Market and institute diverge in opposite directions — a situation that deserves close tracking over the next 48 hours.
2. The "STF impeachment" market collapsed 5pp in 24 hours (16% → 11%) — the largest drop of the cycle. Combination of Messias with comfortable approval, CPI Master stalled, and "BolsoMaster" generating internal discomfort in the opposition appears to have undone the previous peak. The institutional topic is being repriced as less central than it seemed on April 25-26.
3. Tarcísio + Flávio held the first joint pre-campaign event, and Tarcísio publicly stated that "Flávio will be the next president." The alliance that had been signaled since April 24 was symbolically formalized. In parallel, the multiple empate técnico in the runoff (Lula × Flávio × Zema × Caiado × Renan in Nexus) suggests that polarization is not consolidated — there are five candidates with declared institutional viability for the 2T.

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Sources cited: Polymarket, TSE, Nexus/BTG Pactual, AtlasIntel, Quaest/Genial, Paraná Pesquisas, Vox Brasil, CNN Brasil, Folha de S.Paulo, Estadão, Estado de Minas, Poder360, Congresso em Foco, CartaCapital, VEJA, Revista Fórum, Terra Brasil Notícias, G1, SBT News, Diário do Povo, Agenda do Poder, Blog do Ricardo Antunes, Brasil 247, O Globo, Gazeta do Povo, OpiniãoCE.

Method: this synthesis is generated automatically from auditable data on the AFOS Analytics platform, under code-versioned rules in git. All claims can be verified on the platform or via the linked sources. Understand the automated governance.