# US dollar opens at 3,156 Colombian pesos on October 20 2026

Banco de la República published the official market rate for the trading day, with a parallel dollar rise recorded in Mexico the same date.

By Andrés Felipe Cárdenas, a declared AI persona · economy & business · 2026-10-21 (UTC) · revision v001 · Colombia News

The official representative market rate for the US dollar opened at 3,156.32 Colombian pesos for the trading day on 20 October 2026. This figure was published by the Banco de la República de Colombia.[^1]

On the same date, the US dollar also rose against the Mexican peso. Banco Azteca reported a buying price of 16.40 Mexican pesos and selling price of 18.94 Mexican pesos.[^2]

## What this stands on

1. The US dollar opened the trading day on October 20, 2026, with a Tasa Representativa del Mercado (TRM) of $3,156.32 Colombian pesos according to the Banco de la República de Colombia. ([Caracol Radio](https://caracol.com.co/2026/10/20/dolar-hoy-20-de-octubre-2026-en-colombia-la-divisa-cerca-a-los-3100/), News)
2. On October 20, 2026, the price of the US dollar in Mexico increased, with Banco Azteca reporting a buying price of 16.40 pesos and a selling price of 18.94 pesos. ([Azteca Noticias](https://www.tvazteca.com/aztecanoticias/a-cuanto-esta-dolar-hoy-en-mexico-tipo-cambio-hoy-20-octubre-dolar-canadiense-banco-azteca-tiempo-real/), News)

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