The crop year (marketing year) of a crop is the twelve-month period over which one harvest is sold and used; for US corn it runs from 1 September to 31 August. Old crop is grain from the harvest already in store; new crop is grain from the harvest to come. Futures delivering before the new harvest price old crop, those after it new crop.
Quantitative Finance · Glossário
O que é Crop year, old crop, new crop?
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