Reading Price for Risk, Not Prediction#
Week 4 · Candlesticks, volume and support/resistance as risk-boundary tools#
How can a small retail trading account survive execution friction, drawdowns, leverage, and increasingly complex instruments?
The question this week answers#
What can a chart honestly tell us about where risk boundaries might sit — without pretending that past patterns predict the next move?
The point is not to find a “best” trading style or instrument. It is to understand what can make the account fail.
By the end of this lecture#
- read open, high, low and close from a candlestick
- explain what volume adds to price alone
- define trend, range, support and resistance as observations, not predictions
- use chart structure to define invalidation, while separating a planned stop from its guaranteed execution
Chart language the risk plan can actually use#
Candlestick
A compressed record of open, high, low and close for one period.
Volume
How much trading activity accompanied the price move.
Trend / range
Descriptions of how price has behaved — not predictions of what comes next.
Support / resistance
Observed zones where price previously paused or reversed — useful for invalidation, not a promise.
A chart can define where a plan is wrong. It cannot guarantee where a stop will fill#
A worked example#
A simulated five-day close sequence for “Meridian Supply”: $51, 53, 52, 55, 54.
Simulated daily candles, Meridian Supply
Observation before assumption#
Reasonable observation
A mild uptrend with one down day.
Unsupported leap
”Therefore the next day must continue higher.”
The risk-useful question is a different one: what future price action would invalidate the current interpretation?
The numbers#
5-day simple moving average:
(51 + 53 + 52 + 55 + 54) ÷ 5 = 265 ÷ 5 = $53
That $53 is a lagging summary — built from past closes, so it confirms a trend only after that trend has already been forming.
A boundary, not a guarantee#
A chart can help define “this idea is wrong below here.” It cannot guarantee “my stop will fill here.”
That distinction matters most when price gaps or liquidity disappears — the planned exit level and the executed exit price can diverge.
Try it yourself#
Interpret a chart
Simulated ten-day candlestick series
Mark one possible support zone and one resistance zone. Then write: (1) what observation supports each zone, (2) what would invalidate it, and (3) why an actual stop fill could differ from the planned level.
The takeaway#
- Candlesticks and volume describe what happened; they do not predict the next candle.
- Support and resistance are zones that can help define invalidation.
- A planned stop price is a risk boundary, not a guaranteed execution price.
- Week 5 turns these boundaries into position sizes and account-level risk.
Next week#
Week 5 — drawdowns, position sizing, expected value and risk of ruin.