Here's a real-world example:
- I had a position in a stock held overnight with a stop loss order at 45.20.
- Next day the stock opened at 45.60 and made a low of 45.50 within first 5 minutes of trading.
- However, my position was closed by broker at 45.18.
- Answering my questions, support explains that: "Looking at time and sales table for the stock there actually was a trade that happened at 45.18, which triggered my stop loss order. The chart for the stock does not display this price, because the trade volume was below 100 shares."
Is everything correct in this situation, i.e. a random trade of 1 share can happen at a basically random price, triggering my order and not being registered on the chart?
If you don't mind to elaborate, how frequently can this happen? What can I do to prevent this from happening?