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Daily report
Aug 13, 2026
6 min read

Black Sea risk dominated as grains and oilseeds kept a logistics premium

Markets stayed mostly supported on August 13 as escalating strikes on Black Sea grain and port infrastructure lifted export and shipping risk. Still, part of the bullish tone was tempered by reports of a possible Black Sea truce and softer supply signals from the Americas for corn and soybeans.

Overview

The dominant theme of the day was Black Sea export disruption risk. A long series of reports pointed to strikes on grain terminals, ports, vessels, and logistics infrastructure around Novorossiysk, Odesa, and Danube-linked routes, alongside claims that Ukrainian grain exports were being severely constrained or nearly halted. For agricultural markets, that translated into higher logistics, insurance, and shipment risk for wheat, corn, barley, and the sunflower complex. That risk premium was the clearest driver of the session.

At the same time, the picture was not one-way bullish. Late in the day, reports emerged about a possible Black Sea truce or a proposal to halt attacks on civilian shipping, which could ease export risk if implemented. Outside the Black Sea, markets also saw mixed supply signals: European drought was supportive, but record-large U.S. corn and soybean acreage, a larger Brazilian corn outlook, and harvest pressure in wheat added bearish counterweights.

Bullish factors

Bullish
  • Escalation in the Black Sea was the strongest market influence. Multiple reports said strikes hit grain terminals, ports, ships, and export infrastructure, raising the risk of shipment delays or outright disruption.
  • Several items suggested that Ukraine’s grain exports were close to a standstill or sharply restricted, implying tighter available supply from a major exporting region.
  • Reports of Russian port shutdowns and halted grain terminal activity in Novorossiysk were also supportive, especially for wheat, because Russia is a major global supplier.
  • European drought added another bullish layer by threatening corn and broader crop yields across several countries, with possible spillover into feed costs.
  • In the U.S., expanding spring wheat drought and a report that USDA trimmed wheat stocks added support to wheat.
  • For soybeans, strong U.S. export sales and reports of stronger Chinese buying offered demand-side support.

Bearish factors

Bearish
  • The main offset was the appearance of reports about a possible Black Sea truce or a proposal to stop attacks on civilian vessels. If such a deal were implemented, shipping and insurance risk could ease and some war premium could come out of prices.
  • For corn and soybeans, reports of record combined U.S. planted acreage pointed to larger new-crop supplies and weighed on forward balance expectations.
  • Brazil’s higher corn outlook from CONAB was a bearish signal for global corn and feed markets.
  • For soybeans specifically, reports indicating more U.S. soybean acreage were negative for the soybean supply outlook.
  • The northward advance of the wheat harvest in North America also implied fresh supply entering the market, though the pressure looked limited.

Commodity notes

  • Wheat: the clearest winner on the day. Black Sea disruption risk, Russian port issues, U.S. spring wheat drought, and lower wheat stocks all leaned supportive.
  • Corn: support from Black Sea logistics risk and European drought was partly offset by bearish acreage and Brazil supply news. The signal was mixed, but geopolitics kept the bias slightly firmer.
  • Barley: mostly followed the broader Black Sea grain story, with export risk in the region remaining supportive.
  • Sunflower: there were no direct price details, but strikes on Black Sea grain and oil infrastructure supported the sunflower complex through logistics risk.
  • Soybeans: demand news was constructive, especially from China and U.S. export sales, but larger acreage and supply expectations capped the upside.

Final takeaway

The overall tone was moderately bullish, led by Black Sea disruption risk. That factor outweighed bearish supply signals from the U.S. and Brazil, especially for wheat. Still, the market was not uniformly bullish: corn and soybeans showed a more mixed balance, and any credible progress toward a Black Sea shipping truce could quickly reduce the risk premium.