Morning,

Writing this to get the stress of my costly mistake off my back!

Saw $SHLD spiking up on blockchain news, it pulled back slightly and my thesis was to get in on the break of the previous high at $3.69 with 300 shares (small account), so I prepared my buy order just below at $3.58 and as it moves up I enter, with at least a 15 cent target. 

It moves up toward my target and I use my HotKey that I had just added which I thought was Sell On the Ask Total Position Size... BUT basically, it was Buy On the Ask...what an idiot.

So as seen from the below screenshot instead of having a $42 gain I am now in the stock 600 shares and it begins to go against me, being stupid I cant see what went wrong so I sued the HotKey again and it bought another 600 shares....what a fucking idiot.

So eventually I entered the position manually and exited my now 1200 share position on the move back up for a $90 loss + commissions and ECN fees. Fun times.

Of course, I know its a stupid mistake and completely my fault but its a big hit.

If anyone can relate or wants to add anything feel free to message or comment...

Aidan.