What is the 1% rule in trading?

The 1% rule means never risking more than 1% of your account equity on a single trade. On a $25,000 account that is $250 per trade. It does not limit position size directly (a position can be far larger than $250); it limits the loss you take if your stop is hit.

Where should I put my stop loss?

At the price that proves your reason for the trade was wrong, not at a fixed percentage. If you bought because a support level held, the stop belongs below that level. A stop placed at an arbitrary distance is unrelated to the idea being tested, so it gets hit by normal noise while the idea is still valid.

What is a good maximum drawdown?

Most professional traders treat 20% as a serious warning level and 25-30% as a hard stop that triggers a full review. The reason is arithmetic: a 20% drawdown needs a 25% gain to recover, a 30% drawdown needs 43%, and a 50% drawdown needs 100%.

How many positions should I hold at once?

Fewer than most beginners assume, because the constraint is total risk rather than position count. If each trade risks 1%, holding six positions means 6% of your account is at stake if everything hits its stop at once, which correlated positions in the same sector routinely do.

Can I widen my stop if the trade goes against me?

No. Moving a stop further away converts a defined, planned loss into an undefined one, and it does so precisely when the evidence says you were wrong. Almost every account-ending loss begins with a stop that was widened once, then widened again.

Risk Management for Traders: The Complete Guide

The one idea underneath all of it

Every technique in this guide exists to serve a single objective: stay solvent long enough for your edge to show up.

Trading results are not smooth. Even a genuinely profitable strategy produces losing streaks, and those streaks arrive in clusters rather than politely spaced out. A strategy that wins 50% of the time will hand you ten consecutive losses roughly once in every thousand trades, which for an active trader is a matter of a few years rather than a lifetime.

Risk management is what makes that streak survivable rather than terminal. Losses are the cost of doing business; the job is making sure no individual loss, and no plausible run of them, can remove your ability to keep trading.

Position sizing: the decision that matters most

Position sizing is the only variable you control completely. You cannot control whether a trade wins. You can control, precisely and in advance, what it costs you if it loses.

The method runs backwards from the loss, not forwards from the investment:

Risk budget = account balance × risk percentage
Risk per share = |entry − stop| + costs
Position size = risk budget ÷ risk per share

On a $25,000 account risking 1%, with an entry at $72.60 and a stop at $64.00: $250 ÷ $8.60 = 29 shares. The position size calculator does this instantly, including fees and reward targets.

Choosing the percentage

Risk per trade	After 10 straight losses	After 20 straight losses
0.5%	95.1%	90.5%
1%	90.4%	81.8%
2%	81.7%	66.8%
5%	59.9%	35.8%
10%	34.9%	12.2%

Look at the 10% row. Twenty losses, an unpleasant but entirely ordinary streak, leaves 12% of the account. Recovering requires a 720% gain. The trader is not in a drawdown; they are finished.

Stop losses: where, and why there

A stop loss is not a prediction. It is the price at which your reason for being in the trade stops being true.

That distinction determines placement. If you bought because a support level held, the stop belongs below that level, because a close beneath it means support did not hold, which is the whole thesis gone. If you bought on a hammer, the stop belongs below the hammer's low, because that is where the buyers who created the pattern were overwhelmed.

A stop placed at "5% below entry" has no relationship to the idea being tested. It will be hit by ordinary noise while the thesis is intact, and it will be too wide on some trades and too tight on others, at random.

The rules that make stops work

Set it before you enter. Once you are in a position, your judgement about where it belongs is no longer neutral.
Never widen it. Widening converts a planned loss into an unplanned one at the exact moment the evidence says you were wrong.
Tightening is fine. Moving a stop to protect profit is a different action with a different logic.
Give it room for noise. A stop just below an obvious round number or swing low is the first place a probe goes.

R multiples and expectancy

R is the amount you risked on a trade. Expressing results as multiples of R makes every trade comparable regardless of size: +2R means you made twice what you risked, whether that was $50 or $5,000.

Expectancy is your average result per trade, in R:

Expectancy = (Win rate × Average win in R) − (Loss rate × Average loss in R)

A strategy winning 40% of the time with 2R winners and 1R losers: (0.40 × 2) − (0.60 × 1) = +0.20R per trade. Risking $250, that is $50 per trade on average, or $5,000 over a hundred trades, arriving unevenly.

If expectancy is negative, nothing else helps. Better discipline, smaller size and more patience only change how long the account takes to die. The risk/reward calculator shows the win rate any given ratio requires to break even.

Track losses larger than 1R

In a well-run process, almost every loss should be close to −1R. A loss of −2R or −3R means something failed in execution: the stop was moved, ignored, or gapped through. The first two are discipline problems you can fix this week. The third is a sizing problem. Either way, a journal that records R multiples surfaces it immediately. Use the stock profit calculator to convert each closed trade into R.

Drawdown: the maths of getting back to even

Gains and losses are not symmetrical, and the asymmetry accelerates:

Drawdown	Gain required to recover
5%	5.3%
10%	11.1%
20%	25.0%
30%	42.9%
50%	100%
75%	300%

This table is the entire argument for cutting losses early. A 10% drawdown is a bad month. A 50% drawdown requires you to double the account just to return to where you started, and you must do it with half the capital you had when you were performing well.

Set a maximum drawdown that triggers action before you need it. Many professionals use 20% as a warning and 25–30% as a hard stop that means halving position sizes and reviewing every assumption.

Portfolio heat and correlation

Risking 1% per trade does not mean six open positions risk 1%. It means they risk 6%, because the sum is what is at stake if the market moves against all of them at once. That total is called portfolio heat, and most frameworks cap it between 5% and 6%.

Correlation makes this worse than it appears. Five positions in the same sector are not five independent bets; in a sector-wide selloff they behave like one large position. The practical adjustments:

Cap total open risk at a fixed percentage and stop taking new trades when you reach it.
Count correlated positions as one. Three semiconductor names sharing one thesis should share one risk allocation.
Watch market-wide exposure. In a broad decline, correlations across everything converge towards one.

A rule set you can follow

Written down, checked before every entry, and not renegotiated while a position is open:

Risk 1% of equity per trade. Recalculate the dollar figure monthly, not per trade.
Cap total open risk at 5%. At the cap, no new positions.
Every trade has a stop before entry. No stop, no trade.
Never widen a stop. Tightening only.
Minimum 1.5:1 reward-to-risk, measured against real structure, not a wished-for target.
Halve size at a 15% drawdown. Stop and review at 25%.
Record every trade in R. Review anything worse than −1R.

These numbers are a starting point rather than scripture. Adjust them to your strategy and temperament. What is not adjustable is having them written down before you need them. Rules invented mid-drawdown are not rules.