EXHIBIT 11.1 STATEMENT RE: COMPUTATION OF EARNINGS (LOSS) PER SHARE USA TRUCK, INC. -------------------------------------------------------------------------------- <Table> <Caption> Three Months Ended Nine Months Ended September 30, September 30, ----------------------- ----------------------- 2001 2000 2001 2000 ---------- ---------- ---------- ---------- Numerator: Net income $ 589,287 $ 512,357 $ 462,935 $1,298,039 ========== ========== ========== ========== Denominator: Denominator for basic earnings per share- Weighted average shares 9,235,520 9,257,973 9,240,333 9,299,393 Effect of dilutive securities - Employee stock options 41,701 6,143 41,331 6,016 ---------- ---------- ---------- ---------- Denominator for diluted earnings per share- Adjusted weighted average and Assumed conversions 9,277,221 9,264,116 9,281,664 9,305,409 ========== ========== ========== ========== Basic earnings per share $ .06 $ .06 $ .05 $ .14 ========== ========== ========== ========== Diluted earnings per share $ .06 $ .06 $ .05 $ .14 ========== ========== ========== ========== </Table>