Great morning deep in the green, only to oversize on the last trade to end slightly red

Had a great morning as hit $VRTX on the gap and crap, however still didn't stick to scaling and left +3 on table from original plan

$JD popped up on radar and looked good so jumped in it however there was a huge buyer on the bid which looked like it was gonna spike down so took off for small loss.  Price retraced and he dissapeared and came back so i longed again with size on the B/O only to take off for another loss as it failed.

Still green on day and my alert on $COUP hit so took too big of a position and got stopped to end the day slightly red.  This was a poor trade.

And lastly, an alert that triggered but i missed was $BIDU and what a runner it was