On November 3, 2022, the agricultural market experienced significant volatility, with prices for key crops like wheat, corn, oats, and soybeans fluctuating in response to geopolitical developments. Following Russia's announcement of a Black Sea port closure and reopening, wheat prices saw substantial increases and decreases, reaching a high of 19.7 euros and a low of 21 euros for December and March contracts, respectively. Meanwhile, corn, oats, and soybeans also experienced price changes, with corn and oats decreasing by 4 euros and 6 euros, respectively, and soybeans being the only crop to buck the trend, increasing by 1.6 euros and 1.3 euros for November and February contracts, respectively. This demonstrates the sensitive interdependence of global cereal markets.