the Bozo trade .104 has showed up in delayed Level II as a "z" trade which means ... sold - out of sequence <pre> Time & Sales Price Size Exch Time 0.011 35000 OBB 10:24:17 0.011 20000 OBB 10:24:17 0.011 22700 OBB 10:24:17 0.011 25000 OBB 10:24:16 0.011 200000 OBB 10:24:13 0.011 200000 OBB 10:24:06 z 0.0104 40000 OBB 10:23:50 0.104 200000 OBB 10:23:50 0.0109 50000 OBB 10:23:35 0.0109 545000 OBB 10:23:24 0.0109 113761 OBB 10:23:15 </pre>