Activating Macro When Last Cell In Column Is Changed

expanding table

Is this an actual list object or range?

Perhaps this...

Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Column = 9 Then
    Application.EnableEvents = False
    If Target.Row = Cells(Rows.Count, 9).End(xlUp).Row Then Call lasttrade
    Application.EnableEvents = True
End If
End Sub