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{ "name": "tick_rule_bvp_trend_confirm", "source": "Easley, Lopez de Prado, O'Hara 'The Volume Clock' / Bulk Volume Classification literature", "type": "filter_flag", "rule": "For a long trade, require cumulative signed-volume proxy BVP = sum(sign(close-open) * volume) over the prior 20 bars to be positive AND the current bar's |close-open| bar direction to agree with the 20-bar sign; for shorts, require both negative.", "pseudocode": "bvp = sum( sign(close[i]-open[i]) * volume[i] for i in last 20 bars )_dir = sign(close[now]-open[now]) side=='long': allow = (bvp > 0) and (bar_dir > 0) side=='short': allow = (bvp < 0) and (bar_dir < 0) allow", "why_it_works": "Aggregated bar-direction-weighted volume approximates net taker order-flow imbalance, so requiring trend agreement filters entries against hidden supply/demand pressure that price alone cannot reveal." } Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com
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Andrew Stewart Caldin (2026) studied this question.
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