Lesson / WY-02-08
A candlestick compresses prices within a defined observation period into four numbers. In a bar constructed from transaction prices, the open O is the first included trade, H and L are the highest and lowest trades, and C is usually the last included trade. Quote charts may instead use Bid, Ask, or midpoint, while some futures daily charts use the exchange settlement price for C. Daily boundaries depend on trading-day and session settings, and minute bars on each bar’s aggregation interval. Check the platform’s field definitions first.
Course content is for learning and research only. It is not investment advice.
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7 lessons · Chapter contents
01Open, High, Low, and Close: Checking the Basic Data↗02High-Low Spread, Body, and Wicks: Different Measurements↗03Closing Position: Where Price Finishes within the Bar↗04Relative Range: Comparing a Bar with Earlier Volatility↗05Progress, Overlap, and Reactions across Successive Bars↗06Gaps, Unfinished Bars, and Observation Time↗07How Structural Location Qualifies a Single Bar↗Observe the market: start with context and place price within its structure.
Understand structure: compare supply and demand, and let evidence support or revise your hypothesis.
Form a view: define risk limits and know when to reassess.
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Understanding Volume
From Single Candlesticks to Swing Comparisons
