It's OK <a href=" http://www.factoriavoodoo.com/index.php/steel-libido-youtube#briefly ">steel libido 150 </a> Open-outcry volume in corn futures, the biggest of the Board of Trade's cornerstone agricultural contracts, sank to an average of 3.3 percent of total volume, or 181,599 contracts per month, in the year after the change, according to CME data. It had been 6.8 percent in the year prior to the change.