# US dollar volatility and reserve shifts in Latin America

> Live situation record from CLSTR: https://clstr.news/situations/us-dollar-volatility-in-latin-american-markets
> Updated: 2026-10-12T11:05:39.000Z. Sources: 27. Developments: 2.

US dollar exchange rates and central bank reserves have shown varied volatility across several Latin American markets.

In Colombia, the representative market rate (TRM) initially experienced fluctuations, rising above the $3,300 threshold in late September before decreasing to approximately $3,306.86 by September 26. By mid-October, the TRM saw a further decline to $3,194.44, eventually falling below the 3,200 threshold.

In Argentina, the official dollar was quoted at $1,545 for sale in late September, while the informal blue dollar was at $1,560. By October 13, the official rate remained stable at $1,535 for sale, though the blue dollar rose to $1,550. More recently, the Central Bank (BCRA) conducted its largest reserve purchase in over two months, acquiring US$291 million, bringing total accumulated reserves for the year to over US$15,000 million. During this period, the country’s risk premium fell below 600 points.

Regional trends show Nicaragua reaching a historic milestone as its gross international reserves surpassed US$10 billion for the first time. In Peru, the dollar experienced fluctuations with slight differences between the official SUNAT rate and parallel market rates. In Bolivia, the official exchange rate continued a downward trend, reaching Bs. 11.70. Meanwhile, Venezuela previously reported an upward trend in the official exchange rate, reaching Bs. 876.80.

## Timeline

### 2026-10-12: Latin American markets report shifts in US dollar rates and central bank reserves

Latin American economies report diverse currency trends: Argentina's central bank accumulates over US$15 billion in reserves, Nicaragua's reserves exceed US$10 billion, and Peru and Colombia see dollar shifts.

17 sources. https://clstr.news/cluster/us-dollar-exchange-rate-in-peru-remains-stable-on-october-12

### 2026-09-26: Colombia inflation hits 6.24% as US dollar volatility continues

Colombia reports 6.24% annual inflation while the US dollar fluctuates around the $3,300 mark. Meanwhile, Argentina's official and blue dollar rates remained steady over the weekend.

12 sources. https://clstr.news/cluster/us-dollar-rises-in-colombia-surpassing-3300

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Cite as: US dollar volatility and reserve shifts in Latin America. CLSTR, https://clstr.news/situations/us-dollar-volatility-in-latin-american-markets