foundations · TRADING LEARNING GUIDE
Timeframes: different perspectives
What is this concept?
A timeframe groups observations into intervals. Aggregation uses the first open, maximum high, minimum low, last close and the sum of compatible volume. Session boundaries affect grouping.
Step by step
Choose context and execution timeframes. Check timezone and timestamp alignment. Do not use an unfinished higher-timeframe close as historical confirmation; identify missing bars and session gaps.
From observation to decision
Record the instrument, venue, session and timeframe. Classify the observation using the definition, then write at least one alternative interpretation. Decide what evidence would invalidate your idea before entry. Mark missing information explicitly. Examples are hypothetical. Collect paper observations, including failures. Include fees, spread, slippage and timestamp alignment when measuring outcomes. Recognizing a chart shape and establishing a profitable trading rule are separate tasks.
Worked example
Three 5M bars have opens 100,102,101; highs 104,105,103; lows 99,100,100; closes 102,101,103. Their 15M candle is O100 H105 L99 C103. That final close was unknown before the third bar ended.
Common mistakes and limits
Daily and 5M indicator values are not interchangeable. Unfinished higher bars can change; missing bars are not new price history.
Practice
Aggregate three 5M bars into 15M, then group data hourly. Explain why the resulting candle shapes differ.
Resources and further reading
These sources explain definitions and underlying mechanics. Worked examples are original illustrations; a source does not establish the profitability of a custom pattern.
Further reading / foundational context. Worked examples on this page are original illustrations, not source performance claims.