Zep ..... You are looking at the avg cost per share column
on the IB trading page. right?
That value includes the comm. of 1 $. There was no screw up
in executing your order. The price you paid was 58.05.
If you had bought 50 shs at 58.05, then IB reports 58.07
in the avg cost per sh column.
Buying 10 shs at 58.05 would give 58.15 for avg cost/sh.
...etc
...... rj