Mexico Stocks Slip 0.76% as Peso Gains | Mexico Market Report, Oct 28
Key Facts
- Mexico’s main stock index, the S&P/BMV IPC, fell 0.76% to 69,182 on Wednesday after Tuesday’s 0.35% gain.
- The peso gained about 0.3% to 18.62 per US dollar on the day the US Federal Reserve, the US central bank, left interest rates unchanged.
- Food and conglomerate shares fell most: Bimbo, the bakery group, −4.3%; Grupo Carso, billionaire Carlos Slim’s conglomerate, −4.0%; Gruma, the tortilla maker, −2.8%.
- Coca-Cola Femsa, the bottler, rose 1.7%, while América Móvil, the telecoms giant, and Walmex, Walmart’s Mexican unit, slipped less than 1%.
- Prediction markets: Polymarket, a prediction market, puts 82.5% on an unchanged Mexican interest rate in November, as of 28 October 2026, 8:47 pm ET.
Today’s Focus
Mexico’s stock market gave back a little more ground on Wednesday, while its currency did the opposite. The S&P/BMV IPC, the index of the Mexican exchange’s largest companies, fell 0.76% to 69,182 points.
The peso, by contrast, strengthened about 0.3% to 18.62 per US dollar on a day when the Federal Reserve, the US central bank, held rates steady. That is worth about US$0.054 per peso.
The losses were concentrated in food, conglomerate and chemicals shares, while two of the biggest index weights fell less than 1%.
What matters today. Mexico’s peso is one of the most traded emerging-market currencies, so a firmer peso after the Fed hold helps importers and US dollar investors alike.
01 The session in one read
The IPC closed at 69,182 on Wednesday 28 October, down 0.76% from 69,712 on Tuesday. It traded between 68,887 and 69,715 during the session.
The peso ended near 18.62 per dollar, about 0.3% stronger than the day before. The dollar index, which measures the US currency against a basket of major rivals, slipped 0.16% to 102.16.
On Wall Street, the S&P 500 rose 0.28% to 7,744. Mexico’s drop was therefore not a global sell-off, and no single company news item explains it.
The decline was selective: Bimbo, Grupo Carso and Gruma fell hard, but América Móvil and Walmex, two of the largest weights, lost less than 1%. A stronger peso and a calm US market argue against a broad loss of confidence in Mexico.
We could not confirm a company-specific trigger for the biggest drops. The variable to watch is whether the 68,900 area, the session low, holds on Thursday.
02 The day’s numbers
| Measure | Level | Change | Read |
|---|---|---|---|
| S&P/BMV IPC | 69,182 | −0.76% | Pulled back from Tuesday |
| USD/MXN | 18.62 | −0.3% | Peso stronger |
| S&P 500 | 7,744 | +0.28% | Wall Street rose |
| Ibovespa (Brazil) | 171,006 | −2.68% | Regional laggard |
| US 10-year yield | 5.02% | +0.36% | Dollar rates stay high |
The IPC’s 0.76% fall follows a 0.35% gain on Tuesday. The peso’s move to 18.62 means a dollar now costs about 0.3% fewer pesos.
The Fed kept its target range at 3¾% to 4%, with two voters preferring a quarter-point increase. The United States buys most of what Mexico exports, so US rates matter for the peso. Rio Times · Live Market Intelligence
Live Market IntelligenceMexico — Live Market Board
Mexico — Live Market Board
Instrument Last Change YoY Prev. High Low Volume
IPC MEX
68,960.68
-1.08%
+12.74%
69,711.87
70,008
69,383
49,372,306
USD/MXN
18.69
+0.62%
+1.45%
18.57
18.69
18.54
—
WALMEX
49.53
-1.51%
-19.45%
50.29
50.54
49.44
2,069,310
GMEXICO
231.81
+1.57%
+50.31%
228.22
233.41
228.50
1,952,754
FEMSA
232.97
+0.18%
+32.20%
232.54
234.49
230.40
277,092
CEMEX
19.60
+3.48%
+14.42%
18.94
19.63
18.95
9,927,197
GFNORTE
214.68
+0.29%
+24.39%
214.07
215.30
212.24
5,714,524
BIMBO
64.27
+1.56%
+3.36%
63.28
64.60
62.11
988,269
TELEVISA
8.33
-1.77%
-9.16%
8.48
8.52
8.31
1,277,288
AMX
22.47
-0.27%
+7.56%
22.53
22.74
22.39
7,217,012
GAP
418.59
+0.34%
+5.26%
417.18
423.09
413.53
190,130
ASUR
249.54
-1.02%
-18.40%
252.11
253.66
248.64
24,784
OMA
229.76
+0.06%
-3.04%
229.62
231.99
227.86
119,261
KOF
213.92
-0.39%
+31.99%
214.75
216.94
211.01
518,660
GRUMA
245.16
-0.93%
-22.90%
247.46
248.39
245.00
101,929
KIMBER
37.80
+0.13%
+7.64%
37.75
38.38
37.80
2,154,177
AMX ADR
24.01
-0.70%
+5.59%
24.18
24.37
23.99
1,024,581
03 Why it moved: a selective fall
The decline was not broad. Bimbo, the bakery group, lost 4.3%, and Grupo Carso, the conglomerate controlled by Carlos Slim, fell 4.0%.
Gruma, the tortilla maker, dropped 2.8% and Orbia, the chemicals and building-products group, fell 2.5%. Genomma Lab, a consumer-goods company, was the weakest name we tracked at −6.2%.
Against that, Coca-Cola Femsa rose 1.7% and Grupo México, the mining and rail group, gained 0.4%. América Móvil, the telecom giant, and Walmex, the Walmart Mexico unit, each slipped about 0.9%.
The peso gained on the day the Fed kept US rates unchanged. The Bank of Canada, by contrast, raised its rate by a quarter point to 2.50%, according to the RT economic calendar.
04 The day’s movers
| Driver | Level / Move | Change | Note |
|---|---|---|---|
| Genomma Lab (LABB) | Consumer goods | −6.2% | Weakest tracked name |
| Bimbo (BIMBOA) | Bakery group | −4.3% | Biggest large-cap loser |
| Grupo Carso (GCARSOA1) | Slim conglomerate | −4.0% | Industrial and retail arms |
| Gruma (GRUMAB) | Tortilla maker | −2.8% | Food names weak |
| Orbia (ORBIA) | Chemicals, building products | −2.5% | Materials soft |
| Walmex (WALMEX) | Walmart Mexico | −0.9% | Large index weight |
| Coca-Cola Femsa (KOFUBL) | Bottler | +1.7% | Top gainer here |
Index weights matter here. Walmex and América Móvil carry far more weight than Bimbo or Gruma, so a 4% fall in a food name moves the IPC only slightly.
Grupo México added 0.4% and Banorte, the biggest domestic bank, was flat. Cemex, the cement maker, lost 0.5%.
05 The regional scoreboard
| Index | Country | Change |
|---|---|---|
| IPC | Mexico | −0.76% |
| Ibovespa | Brazil | −2.68% |
| IPSA | Chile | −0.82% |
| Merval | Argentina | −1.30% |
| COLCAP | Colombia | −0.03% |
Every major Latin American index closed lower on Wednesday. Brazil’s Ibovespa fell the most, 2.68%, and Mexico’s 0.76% put it in the middle of the pack.
The pattern suggests a regional mood driven mainly by Brazil, but Mexico’s own currency strength kept its loss modest.
06 The technical picture
The IPC’s intraday range of 68,887 to 69,715 leaves the 69,000 handle as the line traders watch. A close below the session low would point toward the lower end of the October range.
A move back above Tuesday’s close of 69,712 would signal that Wednesday’s dip was a one-day pause. The peso near 18.62 sits close to the 18.50 to 18.58 support zone that currency traders are watching.
What Prediction Markets Say
On Polymarket, a prediction market, traders put the chance that Mexico’s central bank, Banxico, leaves its interest rate unchanged at its November meeting at 82.5%. They see a 16.6% chance of a cut of 0.25 percentage points. About US$131,000 has been traded on this market, as of 28 October 2026, 8:47 pm ET.
Prices on prediction markets are bets, not polls or forecasts by officials.
Why we show this: prediction markets turn real-money bets into a live probability that moves within minutes of the news, which is why investors, campaigns and newsrooms in the United States now follow them closely. We show them next to polls and official results, never instead of them.
07 What to watch
- USD/MXN near 18.60: A move below 18.50 would extend the peso’s strength; a slide back above 18.70 would reverse it.
- US rates: The Fed split 10 to 2, with two voters wanting a hike, so US yields (10-year at 5.02%) stay a risk for Mexican assets.
- Food and consumer shares: Bimbo, Gruma and Genomma Lab will show whether Wednesday’s drop was a pause or a trend.
- Banxico’s November meeting: Markets see an unchanged rate as the most likely outcome.
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Frequently Asked Questions
Why did Mexico’s stock index fall on Wednesday?
The IPC fell 0.76% as food, conglomerate and chemicals shares such as Bimbo and Grupo Carso dropped. We could not confirm a company-specific trigger.
What is the IPC?
The S&P/BMV IPC is Mexico’s main stock index. It tracks the largest companies on the Mexican Stock Exchange, including América Móvil and Walmex.
Did the peso weaken or strengthen?
It strengthened about 0.3% to 18.62 per US dollar after the US Federal Reserve left interest rates unchanged.
Which Mexican stocks fell most?
Genomma Lab fell about 6.2%, Bimbo 4.3% and Grupo Carso 4.0%, while Coca-Cola Femsa rose 1.7%.
Market data: RT; exchange figures from BMV
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief
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