Silver Flash-Crashes, Peso Tumbles As Mexican Central Bank Intervenes (Again)
However, as Goldman admits, Banxico made one mistake which explains why virtually the entire post-intervention move has been faded:
In our assessment, if the MXN remains under pressure the authorities should entertain the possibility of using different intervention instruments, such as USD Dollar swaps, for they are not a direct claim on reserves and offer valuable FX hedging protection to the market in a period of significant uncertainty but no large spot market outflows.
There is a problem with using reserves to fight a currency war, one which China is very familiar with:
On the other hand, using USD swaps is precisely what the PBOC shifted to late in 2015 (perhaps as advised by Goldman then too) when it too realized that using reserves was a very rudimentary (if effective) attempt at intervention. The only problem is that it eventually catched up to the central bank, and just like in the case of China which used swaps for about 3-4 months even as the capital outflows persisted, it ultimately had to return to draining reserves for a full blown intervention.
Ironically, even that has failed, and as we have documented extensively in the past 2 months, the PBOC is now scrambling with intraday gimmicks like crushing shorts using deposit rates. That too only works for a while.
Meanwhile, Mexico is caught between a rock and a hard place, because while the currency is depreciating, and the "MXN is now visibly undervalued versus theoretical fundamental fair-value under any of the three model metrics we use" Goldman warns that any further depreciation can undermine the inflation backdrop and/or risk unleashing destabilizing financial forces.
Which is all Trump needs: a several economic crisis just south of the border.
Actually, there is another thing Trump "needs": Mexico launching an all out currency war against the US, whether through reserve draining (which would hit US assets) or USD swaps. Should the central bank intervene on a few more occasions to offset today's failed revaluation attempt, which the market is now openly mocking, we eagerly await the barrage of tweets that will be launched by the Trump account as the president-elect, having slammed the occasional stock, shifts to FX.
Trump aside, what happens next? Once today's intervention fails, the Peso is looking at a lot more downside, and as Rabobank's Christina Lawrence writes,the MXN could fall as far as 23, as there "is little room for MXN relief as Banxico is highly unlikely to provide any lasting support for peso as market is too liquid and Mexico’s reserves will start to evaporate very quickly." Putting trading volumes in context, MXN is the 10th most liquid currency globally with an average daily volume in the spot market of $43b and $112b when including options.
Rabo says that it “expects volatility to rise further and for the skew to continue moving to the right as market participants move to protect themselves from further USD/MXN upside”
Finally, the real message here is that the Banxico’s intervention "may also be seen as sign of greater underlying problems." Bingo.