A futures spread trade where one delivery month is sold and another bought in the same underlying product. Such a trade is entered into in order to take advantage from an expected change in the price differential between the two delivery months. This could occur, for example, because of short term supply problems with the near-dated future. Dresdner Kleinwort Wasserstein financial glossary
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See interdelivery spread Exchange Handbook Glossary
Financial and business terms. 2012.