Most beginners hunt for a better setup. The account usually dies from size.
I learned that the slow way: a “small” extra lot during a losing streak, then another, then a day that wiped more than a week of careful work. The strategy was not the main problem. The unit of risk was.
This page is the rulebook I wish I had printed first. It is education, not a promise that 1% risk makes you profitable. It only keeps one mistake from ending the experiment.
The only number that matters first
Pick a percent of the account you can lose on a single idea and still think clearly.
I use 1% as the default ceiling. Some people use 0.5% while a method is new. 2% is already loud if you take several trades a week.
Account risk in money:
Risk $ = account equity × risk %
Example: 10,000 × 1% = 100. That 100 is the most the stop is allowed to cost, including a little slippage.
Position size:
Size = Risk $ ÷ (stop distance × value per point)
If the stop is 50 points and each point is $1, size is 100 ÷ 50 = 2.
If the stop has to sit 200 points away to be beyond real structure, size shrinks. That is the system working. Do not shrink the stop to keep a large size. That is the system breaking.
I keep a worked version of this next to the pre-trade checklist. If the size that falls out of the formula is too small to care about, I pass. I do not invent a tighter stop so the trade “feels worth it.”
Stops are a location, not a hope
A stop belongs on the other side of the reason you entered.
– If the reason is “hold above last week’s low,” the stop is below that low, not two ticks under the entry.
– If the reason is a pattern that is already 80% of the way to the next level, there is often no room. Pass. That is also risk management.
Hard stops in the platform beat “mental stops” while you are still building the habit. Mental stops are easy to negotiate. I wrote about that negotiation in common mistakes.
Reward-to-risk is a filter, not a religion
A 1:2 sketch means: if the stop is 50, the first logical target is about 100 away, or you skip.
You can be profitable with a 40–50% win rate if losers stay small and winners are left alone. You cannot be profitable for long if winners are cut at +0.3R and losers run to −3R, even with a “great” hit rate.
I do not force 1:2 onto a chart that does not have the room. I pass. Passing is sized as zero, which is a valid position.
A daily cap so one mood cannot use the week
A second ceiling sits on the day, not only on the trade.
Example I still use: if the day is down 2R, I am done. No “one more” to get back to flat. The losing-day journal exists for that hour, not a new ticket.
Correlated trades count as one idea. Two longs in the same index family are not two independent 1% risks. They are one bet wearing two hats.
A short personal plan you can copy
1. Risk per idea: 1% (0.5% on a new method — see first 20 trades.
2. Daily stop: 2R.
3. Stop location: beyond the invalidation line from the weekly map, not a round number everyone else uses.
4. If size from the formula is tiny, skip.
5. Log the planned risk in the journal before the fill.
None of this makes a bad idea good. It only makes a bad idea small enough that you can still take the next A-grade trade.
Trading can take the money you put at risk. This page is not advice for your account size or your market. If you want the psychology side of the same problem, read FOMO and emotions.