LatAm Pre-Open — Friday, September 25, 2026

Source: market close, 24 September 2026.

01 The overnight tape in one read

A firmer US dollar is the thread running through everything this morning. The board shows the dollar index up, and that strength translated into a tough prior session for Latin American FX, with the Colombian peso, Mexican peso, and Brazilian real all losing ground.

The currency pressure is not happening in a vacuum. The VIX, Wall Street’s fear gauge, rose over 3% in the prior session, pointing to cautious positioning even as the S&P 500 ended barely changed.

Asia offered a counterweight: Japan’s Nikkei 225 and Hong Kong’s Hang Seng both rose over 1% in overnight trade. But US futures suggested that optimism may not carry into the American open, with Nasdaq futures notably weak.

Oil remains a supportive pillar for the region’s energy exporters. Brent settled at US$100.80 a barrel, and the USO fund tracking WTI futures rose 2.86%, keeping cash flows healthy for names like Petrobras and Ecopetrol.

02 The board before the open

The board tells a story of broad but uneven pressure. Chile’s IPSA led the regional decline, while Colombia’s COLCAP was barely changed—a notable divergence that suggests local factors are at play in Santiago.

In currencies, the Colombian peso’s outsized slide stands out, perhaps reflecting thinner liquidity or local political noise. The Mexican peso’s over 1% drop adds to the hawkish case for Banxico.

03 What the data shows — B3 turnover leaders dominate a defensive tape

The turnover leaders show where institutional money was parked: Petrobras, Localiza, Vale, and the exchange operator B3 itself. These are liquid, index-heavy names used for macro hedging.

The divergence within the table is stark. EcoRodovias rose 4% on solid volume, while Grupo SBF, a sporting goods retailer, cratered over 9%. That is a market favouring infrastructure over discretionary consumption—a classic defensive rotation.

04 Brazil and the currencies

All eyes are on the IPCA-15, Brazil’s mid-month inflation gauge, due at 9:00 Brasília time. Economists expect a 0.53% monthly rise, a sharp rebound from the -0.40% reading in the prior month.

The number matters for the Selic, the central bank’s benchmark rate. A hot print would dampen bets on faster rate cuts, keeping the real attractive but squeezing growth-sensitive stocks.

The real itself enters the session under pressure, with the dollar gaining 0.44% in the prior session. A firmer dollar plus sticky inflation is a tough combination for Brazilian risk assets.

Speculative positioning data from the CFTC, due later, will show whether foreign investors are still long the real or have started to cut exposure. That is a key sentiment gauge.

05 The regional setup

The regional board shows five of six markets declining, with only Peru’s BVL index rising 0.43%. Chile’s IPSA was the clear laggard, down 1.30%, perhaps weighed by copper or pension reform headlines.

Mexico’s IPC fell a modest 0.43%, but the peso’s sharp drop suggests foreign investors are hedging. Argentina’s Merval slipped 1% despite the peso’s relative stability.

Colombia’s COLCAP was nearly flat, but the peso’s 2.43% slide is a warning sign. If the dollar keeps grinding higher, even the most resilient equity markets will struggle.

06 The technical picture

Brazil’s Ibovespa sits roughly 7.4% below its 52-week high, with the board showing the index at 183,966. The two consecutive down sessions have it testing near-term support.

Mexico’s IPC is deeper into correction territory, about 10.6% off its high. A break below the 64,000 level could open the door to the 60,000 range.

The dollar’s firm tone is the common denominator. If the US currency extends gains, technical support levels across Latin American FX and equity markets will be tested quickly.

Watch the VIX: it rose over 3% in the prior session to 15.67, still low by historical standards but the direction matters. A sustained rise above 18 would signal a deeper risk-off move.

07 What to watch

• Brazil IPCA-15: The 9 a.m. Brasília release will set the Selic path and the real’s tone.
• US durable goods: The 9.30 a.m. Brasília data will shape the dollar’s momentum globally.
• Fed speakers: Williams and Hammack comments could shift rate expectations.
• CFTC positioning: Evening data shows whether speculators are fleeing Latin American FX.

Background: Latin American Markets Open Quietly Before Mexico Rate Decision.

Frequently Asked Questions

What is IPCA-15?

It is Brazil’s mid-month inflation index, a preview of the full IPCA used to guide interest rate policy.

Why does the dollar matter for Latin America?

A stronger dollar raises import costs, pressures local currencies, and often drives foreign investors to pull money out of regional markets.

Which markets were strongest?

Peru’s BVL index was the only gainer in the prior session, rising 0.43%.

What is the Selic?

The Selic is Brazil’s central bank benchmark interest rate, the main tool for controlling inflation.

Market data: RT

This article was produced by The Rio Times’ automated AI newsroom. Editorial responsibility: Matthias Camenzind, Publisher and Editor-in-Chief. The Rio Times also runs Ask Rio Times, which answers from 100,000+ of our own articles, the daily Latin America Power Map, and prediction-market odds on elections and markets.. How we use AI · Report an error

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