MINNEAPOLIS, MINNESOTA, U.S. — MGEX announced on Jan. 27 that it has reached the highest open interest total in its 135-year history as of Jan. 26, closing the day at 82,279 contracts.

This breaks the previous record of 82,056 contracts set on April 17, 2014. The Exchange has seen an increase in open interest each of the past seven days and has now recorded eight top 25 open interest days this month.

The major surge in open interest has been gradually taking place since last summer and has spiked rapidly in recent weeks. Since June 29, 2015, open interest has increased by more than 22,000 contracts, totaling a change of 38% in just under seven months.