Ratigan Capital
Join the lab list

03 / Bull flag

A sharp rise, a pause, then a later break

A sharp rise on Ethereum daily, a pause, then a later break. Educational only.

Educational examples — not a trade Josh took, not a signal

Stepped white and ice-blue blocks forming a rising landscape, an unlabeled picture of market structure.
Illustration of the idea, not a market chart and not a result.

ETH/USD · daily · 2025-04-10 to 2025-05-16. Data: Kraken public OHLC API. Fills, fees and slippage are not known from these bars. Hypothetical study figures on this page are untested.

ETH/USD daily educational chart, 2025-04-10 to 2025-05-16.
ETH/USD daily from 2025-04-10 to 2025-05-16. Educational example, not a signal. Source: Kraken public OHLC API.

The full write-up, including the hypothetical study logic and what happened afterwards, is on the technical examples page. The published facts for this chart are:

Published facts for this example
impulseStart.date2025-04-15
impulseStart.o1622.99
impulseStart.h1659.87
impulseStart.l1583.03
impulseStart.c1588.98
impulseEnd.date2025-04-23
impulseEnd.o1757.59
impulseEnd.h1834.44
impulseEnd.l1746.54
impulseEnd.c1796.05
impulseHigh1834.44
flagHigh1857.05
flagLow1723.73
break.date2025-05-01
break.o1793.87
break.h1872.85
break.l1792.79
break.c1838.84
after8High2488.8
after8Low1752.41
Josh teaching in front of a simple unlabeled candlestick chart.

Josh explains

A walkthrough of this example

This is narration of the published facts on this page. It does not add new numbers, and it is not a signal.

  1. Josh pointing as he explains an idea.

    Step 1

    What the chart is showing

    Ethereum daily in April 2025: a sharp rise from mid-April into a 23 April impulse high of $1,834.44, then a pause whose published flag high is $1,857.05. The title of the example is a sharp rise, a pause, then a later break — educational only.

  2. Josh explaining with open hands.

    Step 2

    How to read it as a student

    Name the impulse, name the pause, then look at whether a later break actually happened in this window. Don’t skip to the break and draw the flag backward so it looks inevitable.

  3. Josh holding up a caution hand.

    Step 3

    What to keep honest

    Flag is a nickname for a shape. It is not a promise that the next pause will break the same way. This is not a trade I took, and hypothetical study figures on these pages stay untested.

Join the lab list

Occasional notes about this public lab — new pages and implementation notes. Not signals, not a membership account, and not an application.

The list is not open yet. This form does not collect or send your address. When it opens, a consent line and the privacy policy will apply.

Education only, not financial advice. This is a personal record of one trader’s decisions, including the mistakes. Trading crypto carries a real risk of losing money. Full disclaimer.