Key Facts
The soybean, corn and wheat funds rose 1.50%, 2.06% and 1.59% on Tuesday 6 October, to US$27.73, US$19.29 and US$25.49 (EODHD; fund prices, not futures).
The soybean fund rose 1.50%, helped by a firmer tone in US crop markets, though we could not confirm a single driver for corn and soybeans.
Wheat is supported by Black Sea disruption: the analyst SovEcon cut its Russian 2026/27 wheat export estimate by 11% to 36.7 million tonnes.
The US Department of Agriculture publishes its crop and supply reports on Friday 9 October, the next big event for grains.
Today’s Focus
Grain funds rose on Tuesday 6 October. The soybean fund SOYB gained 1.50% to US$27.73, the corn fund CORN 2.06% to US$19.29 and the wheat fund WEAT 1.59% to US$25.49.
Black Sea supply problems supported wheat. Brazil and Argentina, the main South American exporters, benefit from higher grain prices.
These are fund prices, not futures. On Monday 5 October, December corn settled at 497.25 cents a bushel, November soybeans at 1,280.75 cents and December wheat at 692.25 cents.
What matters today. Grain prices are rising on weather delays and wheat supply worries. USDA reports on Friday are the next test.
01 The session in one read
Grain proxies rose together on Tuesday 6 October. Corn led with a 2.06% gain in the CORN fund. The wheat fund rose 1.59% and the soybean fund 1.50%.
Wheat is supported by the war disruption to Black Sea shipments. We could not confirm a single driver for corn and soybeans.
We could not verify official Tuesday settlements for the futures, so this wrap follows funds. The last confirmed futures settlements are from Monday.
Assessment — Weather and wheat supply lift prices MEDIUM
Black Sea risk is a supply factor for wheat, and all three funds rose. We cannot say from one day whether the rise will hold.
The variable to watch is Friday’s USDA report on crops and supply.
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02 The board
Soybean fund SOYB, daily chart to 6 October 2026. Source: Rio Times market data (EODHD).
The SOYB, CORN and WEAT funds hold futures for soybeans, corn and wheat. They rose 1.50%, 2.06% and 1.59%.
On Monday 5 October, December corn settled at 497.25 cents a bushel, November soybeans at 1,280.75 cents and December wheat at 692.25 cents, according to the USDA.
Asset
Level
Change
Soybeans (SOYB fund)
US$27.73
+1.50%
Corn (CORN fund)
US$19.29
+2.06%
Wheat (WEAT fund)
US$25.49
+1.59%
Source: EODHD, close of 2026-10-06. Where a commodity has no spot feed, an exchange-traded tracker or leading producer is shown as a labelled proxy.
Funds are labelled proxies. Official futures settlements for Tuesday were not available to us.
Live Market IntelligenceThe live market board
Rio Times · Live Market Intelligence
Latin America — Cross-Market Board
Regional
Oct 6, 2026 · 22:01
Ibovespa · benchmark
205,835.29
-0.52%
L 167,142day rangeH 168,310
+21.85% over 12 months
Market breadth · 5 names
100% advancing
5 ▲ advancing0 declining ▼
Currencies, rates & key inputs
Latin America scoreboard
IndexLastTodayStrength
205,835.29
-0.52%
65,246.95
+0.42%
11,164.13
+0.36%
2,896,853
+0.95%
2,589.04
+0.25%
60,220.93
+0.91%
Full instrument board
Instrument
Last
Change
YoY
Prev.
High
Low
Volume
IBOV
205,835.29
-0.52%
+21.85%
206,911.89
168,310
167,142
—
IPSA
11,164.13
+0.36%
—
11,123.80
11,210
10,984
1,513,213,483
IPC MEX
65,246.95
+0.42%
+12.17%
64,975.08
66,121
65,405
108,886,187
MERVAL
2,896,853
+0.95%
+30.51%
3,022,485
3,042,365
2,991,150
—
COLCAP
2,589.04
+0.25%
—
9.04
9.05
9.02
4,133
BVL PERÚ
60,220.93
+0.91%
—
—
—
—
—
USD/BRL
5.16
+0.01%
-5.13%
5.16
5.18
5.14
—
EUR/BRL
5.95
+1.01%
-5.83%
5.89
5.98
5.94
—
USD/MXN
17.06
-0.24%
-8.58%
17.10
17.08
17.01
—
USD/CLP
913.98
+0.04%
-5.67%
913.65
915.11
906.68
—
USD/COP
3,140
+0.03%
-22.04%
3,139
3,141
3,105
—
USD/PEN
3.36
-0.66%
-4.82%
3.38
3.38
3.35
—
USD/ARS
1,493
+0.10%
+12.96%
1,491
1,494
1,480
—
USD/UYU
40.27
+1.24%
+1.80%
39.77
40.27
40.23
—
USD/PYG
5,939
+1.68%
-19.54%
5,841
5,939
5,925
—
USD/BOB
11.64
-0.76%
+72.04%
11.73
11.72
11.64
—
USD/DOP
58.34
+1.25%
-3.44%
57.62
58.34
58.04
—
USD/CRC
445.92
+0.89%
-9.71%
441.97
448.50
445.92
—
Largest moves today
+1.68%
+1.25%
+1.24%
+1.01%
+0.95%
+0.91%
+0.89%
-0.76%
The session read
The Ibovespa eased 0.52%, with breadth positive — 5 of 5 names higher. MERVAL led, while COLCAP lagged.
03 What moved it
SovEcon, an analyst firm, cut its estimate of Russia’s 2026/27 wheat exports by 11% to 36.7 million tonnes. Disruption at the Black Sea also supports wheat.
04 The Latin American read
Brazil and Argentina are major exporters of soybeans, corn and wheat. Higher world prices raise export income and farm incomes there.
05 The names to watch
The three funds are simple ways to follow the crops. We do not rank individual companies today.
Soybeans and corn matter most for Brazilian and Argentine farmers.
06 The outlook
The USDA report on Friday 9 October will update crop and supply estimates. A bigger crop than expected would pressure prices; a smaller one would support them.
Weather in South America will matter later in the season.
07 What to watch
USDA crop and supply reports, Friday 9 October: The next official update on US crops.
US harvest progress: Faster or slower harvesting would change the supply picture.
Black Sea shipping: More disruption would support wheat.
South American weather: Planting progress in Brazil and Argentina sets the next supply picture.
Frequently Asked Questions
Why did grain prices rise on 6 October?
The soybean, corn and wheat funds rose 1.50%, 2.06% and 1.59%. Reports cite Black Sea disruption for wheat; we could not confirm a single driver for corn and soybeans.
What are SOYB, CORN and WEAT?
They are funds that hold soybean, corn and wheat futures. Their prices differ from futures prices.
What did futures settle at on 5 October?
December corn settled at 497.25 cents a bushel, November soybeans at 1,280.75 cents and December wheat at 692.25 cents, according to the USDA.
When is the next USDA report?
The USDA crop and supply reports are due on Friday 9 October.
Market data: EODHD; futures settlements: USDA AMS; analyst estimate: SovEcon
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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