The peso MXN=D2, which has been hit by the rise of Republican candidate Donald Trump and his policies that are seen hurting Mexico's economy, extended gains to rise 2.25 percent to 18.584 per dollar.
It was the currency's strongest intraday level since Oct. 26.
CME-listed peso futures MPv1 surged as electronic trading kicked off on Sunday evening, with the December contract up more than 2 percent at the highest since 0ct. 25. More than 2,800 contracts had traded, which was about triple the volume of trade last Sunday when weekly trading resumed.
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