3 Jan 2020 In Argentina, the shortcut for the US dollar is USD or U$S. You can only exchange a maximum of 100 dollars worth of pesos back to dollars or USD/MXN currency pair accounts for the bulk of the trading activity in the peso. The best times to trade MXN is typically in the morning when stock markets are also open, and there is a steady Trade ideas, forecasts and market news are at your disposal as well. View live U.S. Dollar / Mexican Peso chart to track latest price changes. Trade ideas, forecasts and market news are at your disposal as well. TradingView . EN. TradingView. Sign In. Ticker Trading Ideas Educational Ideas Scripts People.