Other spread combinations currently listed, include similar spreads for March–to–March, June–to–June, September–to–September, and December–to–December; 25 consecutive one–month spreads; spreads between the first and third nearby months, the first and fourth nearby months, and the second and fourth nearby months; and spreads between June/December and December/June.
Exchange President J. Robert Collins, Jr., said, "This latest addition, following previous additions to spread listings in the winter, are a result of the increased interest in and use of these instruments by market participants to devise innovative risk management strategies."