How do I prevent this happening? It seems to undermine the purpose of a buy limit order.
I did cancel the order in question a few seconds before (evidently not quickly enough) it executed because I changed my mind about where I wanted to buy in, I’m not sure if that contributed to the malfunction.
Good question, seems it was just me being silly.
All my previous buys of the stock in question had been limit buys, I accidentally set this one to be a stop buy for… some reason.