Peso ends October at 18.80 per dollar, a second month of losses

Mexico's peso ended October at 18.7962 per dollar by the FIX, the benchmark rate of the country's central bank, Banco de México. On Sept. 30 the rate was 18.0692, so the dollar gained 0.7270 pesos during the month.

Banxico, as the bank is known, calculates the FIX each business day from wholesale-market trading. It is not the rate a currency exchange counter charges.

September was harder on the peso. The rate rose 1.0545 pesos between Aug. 31 (17.0147) and Sept. 30 (18.0692). August went the other way, from 17.3288 on July 31 to 17.0147. With October, the peso has now ended two straight months weaker than it began them.

Within October, the rate hit its low on Oct. 6, at 17.9670, and its high on Thursday, Oct. 29, at 18.8148, the weakest peso since August 2025. It eased by less than two centavos on Friday.

A pricier dollar raises the cost of what Mexico imports, from fuel to food and electronics, along with debts owed in dollars. Families receiving remittances collect more pesos per transfer, and travel or shopping abroad costs more.

At the Oct. 30 rate, $1,000 buys 18,796.20 pesos. At the Sept. 30 rate, it bought 18,069.20.