EUR/MXN to 21.12: Banxico's hold still cheapens the peso

The euro against the Mexican peso (EUR/MXN) reaches 21.12 by December 17, 2026 in the base case, 21.55 in the bull case and 20.15 in the bear case, because Banco de México's cut to 6.25% narrowed the carry gap against a European Central Bank (ECB) deposit rate that remains at 2.50%. The ECB euro reference rate printed 20.8343 pesos per euro on November 9, 2026, up 6.08% from the September 4 low of 19.6401 and 1.39% under the October 30 high of 21.1237.

Key levels for EUR/MXN follow those ECB reference prints and the two policy rates that frame the December announcement.

EUR/MXN: 20.8343 on the ECB euro reference rate for November 9, 2026, with the dollar leg at 1.1193.
Base case target: 21.12 by the December 17, 2026 Banco de México announcement, rounding the October 30 high of 21.1237.
Bull case target: 21.55, equal to a 19.25 dollar-peso rate times the 1.1193 euro reference.
Bear case target: 20.15, a return toward the October 8 low of 20.1486.
Major support: 20.1486, the October 8, 2026 ECB reference low.
Major resistance: 21.1237, the October 30, 2026 ECB reference high.
Invalidation: an ECB reference print below 20.1486 on or before December 17, 2026.

How the ECB reference and the Banxico calendar set the levels

The 20.8343 spot is the ECB euro foreign-exchange reference for the peso on the daily cube of November 9, 2026, with the dollar leg at 1.1193 dollars per euro. The cube is an information rate published around 14:15 Central European Time, and the levels below are scored on that fixing.

Related:CHF/NOK to 11.3514 as the policy gap favours the krone

The horizon for EUR/MXN is the next scheduled Banco de México (Banxico) monetary-policy announcement, taken from Banxico's own English calendar. That page lists eight announcement dates for 2026, and the December cell prints 17 beside footnote 5, which places the December 2026 minutes on Thursday, January 7, 2027 and identifies the announcement as Thursday, December 17, 2026, at 13:00 Central Standard Time. The same page sets the November 5 minutes on November 19 and the July-to-September quarterly report on November 26. The cover line still reads 2025, while note 1 states eight dates for 2026, and notes 4 and 5 separate the December 2025 minutes from the December 2026 minutes. The board can act outside those eight dates, so December 17 is the next scheduled slot, and the Spanish text of the November 5 statement is the official wording.

Where EUR/MXN has traded since the September low

From September 4 to November 9 the peso reference ran from 19.6401 to 21.1237 and back to 20.8343, leaving the cross 6.08% above that low and 1.39% under that high, with the October 8 low at 20.1486 and the November 9 cube 0.23% under the November 6 fix of 20.8828.

Sources: ECB euro foreign-exchange reference rates, cube dated November 9, 2026, and peso fixes back to September 4, 2026; Banco de México statement of November 5, 2026; October 2026 Survey of Specialists, published November 3, 2026. Time window: September 4, 2026 to November 9, 2026.

"Its position leaves the peso very vulnerable to any pick-up in external risk and USD/MXN pushing above 19 seems more likely than not."

— Chris Turner, Global Head of Markets and Regional Head of Research for UK and CEE, ING, in the November 6, 2026 FX daily (ING).

Why a 375 basis point gap still cheapens the peso

On November 5 the Governing Board cut the overnight interbank target by 25 basis points to 6.25%, effective November 6, and described the move as a one-time adjustment alongside an extended hold at that level. Victoria Rodríguez, Gabriel Cuadra and Omar Mejía voted for the cut, while Galia Borja and Jonathan Heath voted to keep 6.50%. The premium over the ECB deposit rate fell from 400 basis points to 375. ING's November 6 note puts the Banxico-Federal Reserve spread at 225 basis points and calls that spread the lowest in decades.

The carry gap on EUR/MXN is the difference between Banxico's overnight interbank target and the ECB deposit facility rate, and that gap is why the base case sits at 21.12. After the November 5 cut the Mexican target is 6.25%, and after the October 29 hold the deposit rate is 2.50%, so the premium is 375 basis points rather than the 400 basis points that applied at 6.50%. An extended hold takes a further 25 basis point cut out of the path into December 17 and leaves the November reduction in place. The October survey, published on November 3, still carried a 6.50% median for the year-end funding rate, and its 18.39 median for the dollar-peso rate implies a cross near 20.58 at the 1.1193 euro reference, which is the quantitative case for a firmer peso.

"The upshot for the economy is continued uncertainty that will weigh on business sentiment and investment, justifying Banxico holding the policy rate despite further tightening by the Fed."

— Olga Yangol, Head of Emerging Markets Research and Strategy for the Americas, Crédit Agricole CIB, quoted by Dave Taylor on November 9, 2026 (Exchange Rates UK).

What a two-leg cross model leaves on the table

EUR/MXN is the euro multiplied by the peso, so if the euro reference falls by more than the dollar-peso rate rises, the cross can stay under 21.12 even with the dollar-peso rate above 19, the area Turner flagged on November 6.

The ECB peso graph and the daily reference cube are information rates, so a dealing print can touch 21.12 while the 14:15 fix stays below it. The same reference-rate method sits behind the euro-sterling premium over the deposit rate and the euro-rand reference-rate gap.

What would invalidate this higher-cross case

The base case to 21.12 breaks if any one of these four signals prints on or before December 17, 2026:

• An ECB peso reference at or below 20.1486. That October 8 low retires the map, including the bear case at 20.15.
• A return of the overnight target to 6.50% with the peso reference through 20.1486. That would restore the 400 basis point premium against the deposit rate.
• The cross back through 20.40 while the dollar-peso rate loses the 18.39 survey median. At 1.1193 that median implies about 20.58 on the euro cross.
• An ECB dollar reference below 1.0900 with the peso reference at or under 21.1237. A weaker euro leg can sink the cross even if the peso softens against the dollar.

A December 17 hold that leaves the fixing between 20.1486 and 21.12 would miss the base case and would leave 20.15 and 20.1486 as the live levels, as the November 5 statement already lists greater peso depreciation among the upside inflation risks.

What to watch before the December announcement

November 19 brings the minutes of the November 5 meeting, November 26 brings the quarterly report for July to September 2026, and December 17 is the announcement at 13:00 Central Standard Time. The base case is a reference at or above 21.12 by that day, with the minutes due on January 7, 2027, after the level has been scored.

The October 29 ECB decision kept the deposit facility at 2.50%, the main refinancing rate at 2.65% and the marginal lending rate at 2.90%. A deposit-rate cut before December 17 would widen Mexico's premium, and a hike would narrow it. The peso-yen survey of carry is the check on the 18.39 median, December 17 is the cell on the Banxico monetary-policy calendar, and the October medians are in the survey of specialists.

TL;DR

EUR/MXN reaches 21.12 by December 17, 2026 in the base case, 21.55 if the dollar-peso rate reaches 19.25 with the euro near 1.1193, and 20.15 if the peso reclaims the early-October range. The ECB reference printed 20.8343 on November 9, 2026, 6.08% above the September 4 low of 19.6401. The cut to 6.25% left a 375 basis point premium over the 2.50% deposit rate. The October survey median of 18.39 implies a cross near 20.58, and a reference below 20.1486 breaks the map.

FAQ

What is the EUR/MXN base case into the next Banxico decision?

The base case takes the euro against the Mexican peso to 21.12 by the Banco de México announcement on December 17, 2026, a rounded retest of the October 30 ECB reference high at 21.1237. Spot is the November 9, 2026 ECB reference of 20.8343, and the mechanism is the cut to 6.25% against a deposit rate of 2.50%, a 375 basis point premium. A reference below 20.1486 breaks that map, with 21.55 and 20.15 as the bull and bear prints.

Where does the 20.8343 spot on EUR/MXN come from?

The 20.8343 figure is the ECB euro foreign-exchange reference rate for the Mexican peso on November 9, 2026, from the daily cube, with the dollar on that cube at 1.1193 dollars per euro. The ECB publishes the cube around 14:15 Central European Time, and later levels are scored on the same series. Dividing 20.8343 by 1.1193 puts the implied dollar-peso rate near 18.61.

Why does a hold at 6.25% still leave the peso cheaper on the cross?

A hold at 6.25% keeps the overnight target where the November 5 majority left it and keeps the premium over the ECB deposit rate at 375 basis points. At a 6.50% target and a 2.50% deposit rate that premium was 400 basis points, so the hold preserves a gap 25 basis points tighter than before the cut. Galia Borja and Jonathan Heath preferred to keep the target at 6.50%.

What EUR/MXN print would break the higher-cross case?

An ECB peso reference at or below 20.1486, the October 8, 2026 low, breaks the higher-cross case on or before December 17, 2026. That same print retires the bear case of 20.15, which sits just above the October low. A return of the Banxico target to 6.50% matters when it arrives with that price break, because it would restore the 400 basis point premium.

This article is informational analysis only and is not financial, investment, or trading advice. Foreign-exchange, commodity, and equity markets are highly volatile and can lose substantial value rapidly. Leveraged products carry total-loss risk and may exceed the initial margin posted. Past performance and historical correlations do not guarantee future results. Do your own research and consult a regulated financial adviser before making any investment decision.