Was holding stable at 4.92, then dropped rapidly to 4.70 within 2 1-minute candles. Blew through stop limit and unable to cut losses until 4.72. Due to European time zone, I was asleep and unable to catch move to 5.14 post market. Never got back there in pre-market or during the first 5 minutes of trading.
Had stop limit at 22.82. Although the chart showed no price on the day (including the candle wick) below 23.03, when I called E Trade, the rep said that right at the open there was a split second that the price dropped to 22.82 and my stop limit was triggered. I still think that is BS and it was a foul-up on their part. Nevertheless, my position was exited for a small loss.