i had 6 short sale violations last month. redi sucks. so, that's 6 of 20 days. then count every other mistake that happened - wrong symbol, share amount, side, blah blah blah, prolly about 1 a day.
Quote from Sarasota:
My stupid mistakes tend to be super aggressive trading when I am significantly up for the day. I used to throw away profits because of my "playing with the house's money" mentality. Thankfully I don't go down that road much anymore.
I am also embarrassed to say that I have forgotten to roll over to a new contract on the third Thursday of the expiration month. I was trading off the continuous contract on my charts, but didn't roll over to the new contract on my order entry system. Done that a couple of times.
Quote from Sarasota:
I am also embarrassed to say that I have forgotten to roll over to a new contract on the third Thursday of the expiration month. I was trading off the continuous contract on my charts, but didn't roll over to the new contract on my order entry system. Done that a couple of times.
Quote from Scientist:
By the way, I have attached a version of that error sheet for you to look at and edit at your own will - But if you use it in any way, please contribute to improving the sheet in any way you can, and to this thread - cheers!
S

Quote from WaveTrader2004:
The worst mistakes I have made in the last 4 years are falling asleep at my desk with out a stop loss on my position.
Probably the best one was when I woke up to find myself down $3500 about 4 years ago on a Friday.
I had the money back by Tuesday.
A month or so back I had a position with a stop on it and went and laid down for 5 minutes only to wake up 4 hours later.
To my surprise the stop hadn't been hit and I closed out a bit above where the optimum exit would have been. I dare say that had I been awake through the experience I would have been in and out about 4 times with the ES that day.
Win some lose some.