The article reports on the fluctuations in the prices of various dairy products in Poland and the Chicago Stock Exchange over a specific timeframe. It highlights a general decrease in the prices of butter and skimmed milk powder domestically, with increases in some instances compared to the previous year. Conversely, the prices of whole milk powder and cheese, both in Poland and on the Chicago Stock Exchange, showed increases both week-on-week and year-on-year. These changes point to a dynamic market with varying demand and supply conditions affecting the prices of different dairy products.