The Mexican peso held largely stable against the US dollar on Monday, while the country's stock market closed slightly lower. Investors assessed geopolitical tensions in the Middle East and awaited quarterly earnings reports from several major companies.

According to data from the Bank of Mexico, the peso traded around 20.50 per dollar, showing a steady trend. The benchmark IPC index fell 0.53% to close at 68,861.91 points. Market caution stemmed mainly from the stalled peace talks between the United States and Iran over the weekend, with continued military standoffs near the Strait of Hormuz dampening global risk appetite.

At the individual stock level, shares of airport operators were among the main contributors to the market's decline. Grupo Aeroportuario del Sureste saw its shares drop 2.12%, Grupo Aeroportuario del Pacífico fell 1.82%, and OMA recorded the most significant decline of 4.55%.

Analysts noted that with the US and Iran lacking direct communication and relying only on third-party mediation, a substantive breakthrough in the Middle East situation is unlikely in the short term. Iran has proposed a three-phase negotiation framework that includes ending the war, lifting blockades, and reopening the strait, but the US response has so far been cool. Meanwhile, markets are closely watching quarterly results from multiple companies due this week for further clues on the health of the economy.