Progressive exposure means varying how much you risk based on evidence rather than conviction: small size when you are out of sync or the market is hostile, larger size once your recent trades are working and the environment supports them. It is usually implemented as tiers tied to a measurable input — a rolling win rate, recent P&L, or the state of the index — with the risk percentage defined in advance for each tier.
Fixed sizing treats every period the same. You risk 1% in a roaring uptrend where your setups work and 1% in choppy tape where the same setups fail repeatedly. Over a year that is a large amount of risk taken in exactly the conditions where your expectancy is negative.
The instinctive fix — trade bigger when you feel confident — is worse than fixed sizing, because confidence peaks right after a winning streak, which is statistically an ordinary moment rather than a special one.
Progressive exposure replaces the feeling with a rule.
Three tiers is enough. More becomes unmanageable in real time.
| Tier | When | Risk per trade |
|---|---|---|
| Rebuild | After a drawdown, or in a hostile market | 0.25% – 0.5% |
| Base | Normal conditions, results around average | 0.75% – 1% |
| Pressing | Recent trades working, environment supportive | 1.5% – 2% |
The numbers are illustrative — the structure is the point. What matters is that the tier is chosen by a rule you wrote before the week began, not by how the last trade felt.
Whatever you pick must be measurable, lagging enough not to whipsaw, and knowable before you place the trade.
Combining two is reasonable. Combining four produces a rule you will not follow.
The Pressing number should not be "as much as I dare". Derive it: at a 40% win rate, runs of five and six losses are ordinary. Multiply your top-tier risk by six and ask whether you could sit through that immediately after a good stretch.
If −12% would make you abandon the strategy, 2% is not your top tier no matter how well things are going. The full sizing arithmetic is here.
Risk per trade is only one of the two levers. The other is how many positions you hold at once, and most traders execute that one far more reliably.
The other form of progressive exposure operates inside a single trade: take a partial position at the entry, add once it proves itself — a follow-through day, a higher low, a close above the first resistance.
Two rules keep this honest. The add must have its own defined stop, and the combined position must still respect your tier's total risk. Adding to a position that has moved against you is not progressive exposure — it is averaging down wearing a better name.
Progressive exposure fails in one predictable way: traders take the Pressing tier early and the Rebuild tier late. Sizing up after two good trades and refusing to size down during a drawdown inverts the whole system, so you carry maximum risk into the worst conditions.
The fix is that the tier is calculated, not chosen. If the input says Rebuild, you are in Rebuild, including on the setup you are certain about. The rule earns its keep precisely on the trades you would have overridden it for.
You do not have to adopt this on faith. Tag every past trade with the tier its rule would have assigned at the time, re-size each one accordingly, and compare the resulting equity curve to what you actually did. If the tiers add nothing, you have learned something cheaply. If they cut your drawdown by a third for the same return, that is the whole case.
TradePiko's Position Sizing Advisor puts you in a Rebuild, Base or Pressing tier from your rolling win rate, sized so a realistic losing streak stays inside a 5% monthly drawdown — and shows on every past trade what it would have recommended at the time.
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