Day 1: a high-water mark is not money
At 12:59pm on 2025-08-25 one of my accounts printed a high-water mark of $399,867. That was a one-time intraday peak on the screen. It was never a month, never income, never a rate, and I never withdrew it.
The next trading session, 2025-08-26, the same account closed -$412,031 across 515 fills. One session.
The gap between those two numbers is the whole lesson, and it is not about being unlucky. It is about which number I was managing. I was managing the screen. The screen is unrealized, it is a quote on positions I still held, and it can be taken back in full without a single new decision from me.
The distinction, stated cleanly.
Realized is money that has left the position and settled as cash or as a booked loss. It cannot be revoked by the next tick.
Unrealized is an opinion the market is currently expressing about something you still own. It is real for reporting and it is not real for spending, for sizing the next position, or for deciding you are the kind of trader who can size up.
The failure mode is not that people do not know the difference. Everyone knows the difference. The failure mode is that unrealized profit silently raises your risk tolerance. A screen showing a large green number makes the next position feel free, because it feels like you are risking the market's money. You are not. You are risking your own money at a size you would have refused a week earlier.
What it looked like in my book. Across the moomoo account, 130 contract series, 65 finished green and 65 finished red. That is close to a coin flip, and a coin flip is survivable at a fixed size. It is not survivable when the size is set by how good the screen looked that morning.
Today's exercise. Ten minutes, on your own account.
Write down your account's all-time high-water mark, and the date and time it happened.
Write down your realized total, all closed positions, all time, fees included.
Write the difference between them on the same line.
Most people have never seen those two numbers next to each other. If your high-water mark is well above your realized total, then the number you have been carrying in your head is a number you never actually had, and every risk decision you made using it was made with fake information.
You do not have to change anything today. Just look at both numbers. Tomorrow we look at the positions that were green and finished red, which is the same problem one level down.
Educational only, not financial advice. Trading involves risk of loss. I publish my losses too.



