Trucking stocks have risen more than 20% so far this year, generally outperforming the overall market and re-bounding from a downturn in the second half of 2012, when truckers lagged behind.

LAS VEGAS — Mack Trucks Inc. and Michelin North America said they will continue as the main sponsors of American Trucking Associations’ Share the Road program in 2013.

LAS VEGAS — Mack Trucks Inc. and Michelin North America said they will continue as the main sponsors of American Trucking Associations’ Share the Road program in 2013.