Futures and options trading of the National Corn Index (NCI) and the National Soybean Index (NSI) has begun on MGEXpress, the Minneapolis Grain Exchange's electronic trading platform. NCI and NSI trading hours are from 8:30 a.m. until contract closing at 1:30 p.m. and from 2 to 4 p.m. for trade conducted as part of the next business day's activity.