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In this post, we address the topic of Order Flow Delta (OFD) from a mechanical and systematic point of view. The goal is not to introduce the concept itself, but to define a simple and explicit framework that minimises discretionary interpretation.
Order Flow is often applied subjectively, which makes it difficult to verify and compare results. In this case, its use is deliberately limited to a narrow set of clear, rule-based conditions designed to be observed, measured and analysed consistently.
The content is not intended to promote OFD or evaluate its operational effectiveness. The approach is deliberately neutral and research-oriented: to provide a structured framework similar to what an algorithmic trader would use to analyse a phenomenon before turning it into a model.
It is important to clarify the scope of application from the outset. This article does not propose ready-to-use trading strategies and does not intend to build a complete system. The aim is to isolate a specific behaviour, study it quantitatively and offer a frame of reference that can be reused and adapted for personal research.
From a methodological point of view, OFD is analysed in direct relation to price, using a basic chart and relying solely on price movements to identify relevant fluctuations and structurally significant bars. Standard OHLC data is sufficient. The focus is not on market microstructure, but on reducing noise and working only with price segments that are significant for analysis.
From an operational perspective, two absorption scenarios are examined. The first concerns multi-bar absorptions, typically observed in slower, more structured reversal contexts. The second concerns single-bar absorptions, more common in faster contexts such as pullbacks or corrective phases within a consolidated directional movement.
At the end of the article, readers will have a set of formal rules that can be used to backtest absorption models or make manually structured observations. The framework is designed to be usable even without programming skills, offering a practical way to evaluate OFD through direct analysis of charts.
This content is intended for those who are in an exploratory phase: traders who use or would like to use OFD but find it difficult to transform a discretionary approach into something verifiable; those who are evaluating third-party tools or add-ons and want to understand, in a limited time frame or during a trial period, whether OFD fits their workflow; and those who rely on free tools but lack clear operational guidelines for separating relevant information from noise.
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