Where the stop actually goes, and sizing to R

Everything so far was about reading a chart. This module is the part that decides whether reading it well makes you any money, and it inverts the order most people work in.

The wrong order is: pick a size, enter, then decide where it hurts too much to hold. The right order is: identify the price that proves you wrong, measure the distance, then derive the size from your risk unit.

The stop is a price, not an amount

Your stop belongs where the thesis is invalidated. If you are long a flag break because buyers held the flag low, the thesis dies below the flag low. That is the stop. A stop at "8% because that is my rule" is arbitrary: it will be inside the noise on one setup and outside the invalidation on another.

• ·Flag break: below the flag low.
• ·VWAP reclaim: below VWAP, plus a few cents of tolerance for the zone.
• ·HOD break: below the breakout level, or the last higher low if that is tighter.
• ·Parabolic fade (short): above the climax high. This one is genuinely wide, which is why the size must be genuinely small.

Sizing derives from the stop

Fix a risk unit: the cash you are willing to lose on one idea, constant across trades. Then position size is arithmetic:

This is what makes results comparable. A tight setup gets a large position, a wide one gets a small position, and both risk the same. Without it, your P&L measures how big you happened to go, not whether the read was any good, and every statistic in your journal becomes uninterpretable.

Targets in R

R is one unit of risk. If the stop is $0.14 away, then +$0.14 is 1R, +$0.28 is 2R. Expressing targets in R makes setups comparable across price ranges and makes the only equation that matters legible:

Expectancy = (win rate × average win in R) − (loss rate × average loss in R)

This is why a 38% win rate can be profitable and a 66% win rate can lose money. The low-float squeeze archetype wins less than half the time and is one of the better setups in our ledger data, because the winners are multiples of the losers. Judging a setup by win rate alone is the most common analytical mistake in retail trading.

• ·Scale out at structure, such as prior levels and extension targets, not at round dollar amounts.
• ·Move the stop to breakeven only when structure justifies it. Doing it reflexively at +1R converts winners into scratches.
• ·Do not widen a stop. The trade that makes you consider it is the trade that teaches you why not.