Mexico’s peso strengthened against the U.S. dollar on Monday, with Banco de México’s interbank closing rate falling about 0.54% even as the dollar index edged higher, underscoring a mixed backdrop for currency markets.
Banco de México listed an interbank closing rate of 18.5588 pesos per dollar for Oct. 26, down from 18.6601 on Oct. 23. The roughly 0.54% retreat in the quoted rate is calculated from those readings. The figure records the number of pesos per dollar, so its decline indicated a modest rise in the peso’s dollar value. The move followed Friday’s rebound, which still left the peso weaker for the week.
U.S. equities also advanced Monday. Reuters reported that the Nasdaq rose 0.8%, the S&P 500 gained 0.7% and the Dow added 0.3%, while the S&P 500 technology sector climbed 1.5%. The news agency said renewed optimism about artificial intelligence after Anthropic filed for a proposed stock offering, together with lower oil prices, supported risk appetite. Reuters also reported a rise in the U.S. dollar index, leaving currency and stock market moves pointing in different directions.
Anthropic, PBC filed a public Form S-1 registration statement with the Securities and Exchange Commission for a proposed offering of Class A common stock. The filing says its preliminary prospectus is incomplete and the securities cannot be sold until the registration statement takes effect.
At a meeting in Tehran on Monday, officials from Iran, Saudi Arabia, Pakistan and Türkiye agreed to continue dialogue on regional cooperation, peace and security, a joint statement said. The Associated Press reported that no date or location for another meeting was announced.
The Federal Open Market Committee is scheduled to meet Oct. 27-28. Mexico’s preliminary merchandise trade balance data are due Oct. 27, followed by a timely estimate of third-quarter GDP on Oct. 30.

