Mexican Peso: up move halts at key level

• The Mexican Peso trades mixed after rising for four consecutive days. 
• Gains came from a move by the Supreme Court to re-examine controversial reforms and a Banxico official's comments. 
• USD/MXN falls to critical support at the base of its rising channel and the 50-day SMA. 

The Mexican Peso (MXN) fluctuates between minor gains and losses on Friday during the European session after clocking up four successive up days in all three of its most-traded pairs: USD/MXN, EUR/MXN, and GBP/MXN. 

The Peso's strength came initially from Deputy Governor of the Bank of Mexico (Banxico) Jonathan Heath, who commented on Tuesday that interest rates should remain higher for "more time". Higher interest rates encourage more foreign capital inflows and strengthen the Peso. Later in the week, news of a Supreme Court decision to review and potentially revise controversial reforms to the judiciary encouraged a continuation of the rally.

It should be noted that the Peso is now at the 50-day Simple Moving Average (SMA) level in all of three of its key pairs, a technical indicator institutional investors take into account during their decision-making.  

Mexican Peso appreciates following Supreme Court motion

The Peso rallied on Thursday after the news that Mexico's 11 Supreme Court judges voted by a majority of eight to three to re-examine controversial constitutional reforms to the judiciary, passed by the government in September. The move could block the implementation of the reforms, which seek to have judges elected rather than appointed, according to El Financiero. 

Mexican financial markets took a beating in June after the election of the Morena-led government amid investor concerns regarding these and other proposed reforms. They were a contributing factor in a 10% depreciation of the Mexican Peso. Critics argue that they threatened the independence of the judiciary, were anti-democratic, and endangered outside investment. 

The new laws, which were voted in by the Mexican Parliament in September, remain a risk to Mexican assets including the Peso, as highlighted by advisory service Capital Economics in a recent note: 

"At the moment, Mexico has an investment grade rating from all three major rating agencies and we doubt this will change in the near-term," wrote Kimberley Sperrfechter, Emerging Markets Economist at Capital Economics, adding, "That said, if the judicial reform leads to a significant deterioration in the quality of institutions and weaker growth and fiscal policy isn't tightened sufficiently, there is a risk that Mexico is downgraded in the medium-term." 

The decision to have the reforms re-examined has been spear-headed by Supreme Court Judge Juan Luis González Alcántara. It rests on the legal principle that the new laws risk undermining the independence of Mexico's judiciary. 

Whilst the Supreme Court does not have the power to annul the laws, it can decide whether they need to be revised. Morena's Head of the Government of Mexico City, Marti Luis Batres, described the move as a "coup d'etat". 

Technical Analysis: USD/MXN falls to 50-day Moving Average

USD/MXN falls all the way down to the base of its rising channel and the level of the 50-day Simple Moving Average (SMA) - a key line in the sand for traders.  

USD/MXN Daily Chart 

USD/MXN is expected to find support at this level, and there is a chance it will rebound and start moving higher within the range again. The medium and longer-term trends are now bullish, and given the technical analysis principle that "the trend is your friend," the odds favor a recovery and continuation higher.

That said, the short-term trend is bearish, and the GBP/MXN cross has broken below its rising channel already, which can sometimes be a "canary in the coalmine" warning for other Peso pairs.  

A decisive break below the channel and the 50-day SMA, therefore, risks threatening the medium-term uptrend in the USD/MXN. Such a move would be characterized by a longer-than-average bearish candlestick that pierced cleanly below both the channel line and the SMA, and closed near its low. Such a break would clear the way for losses, first down to 19.00 (August 23 low, round number) and then 18.60, the level of the 100-day SMA.