J.B. Hunt falls after posting lower first-quarter profit

Shares of U.S. trucking firm J.B. Hunt Transport Services JBHT.O fall 4.6% to $128.91 in aftermarket trading

Company reports fall in Q1 profit due to a decrease in average truck count

Reports Q1 profit of $117.7 million or $1.17 per share compared to $127.5 million, or $1.22 per share last year

Posts Q1 revenue of $2.92 billion, a 1% decline from $2.94 billion last year

As of Tuesday's close, stock down 20.8% YTD