Delta is the difference between aggressive buying volume (market orders hitting the ask) and aggressive selling volume (market orders hitting the bid) within a candle or time period. Cumulative delta tracks the running total over time. Divergence between price and cumulative delta reveals whether rallies/selloffs have genuine buyer/seller conviction.
Positive delta = more aggressive buying than selling, Negative delta = more aggressive selling, Cumulative delta divergence from price = weakening move, Delta at specific price levels shows who has control, Volume delta POC shows where most aggression occurred
Bullish price + bullish delta = healthy trend (continuation), Rising price + falling cumulative delta = bearish divergence (reversal setup), Falling price + rising cumulative delta = absorption (bullish reversal), Delta extreme spike + price reversal = exhaustion
Delta divergence trades: enter when price reverses after divergence confirmation, Exit if delta re-aligns with price direction, Use delta to confirm or reject candle patterns
Tick charts, 1M, 5M, 15M for active trading; 30M+ for analysis
Delta analysis works best in liquid futures markets (ES, NQ, CL) where real volume data is available. Crypto exchange volume may include wash trading. Forex 'volume' is tick volume, not true order flow.
Volume Profile displays the total volume traded at each price level over a specified period (session, week, month, or visible range). Unlike time-based volume histograms, volume profile shows WHERE trading activity concentrated. Key levels include the Point of Control (POC), Value Area, and High/Low Volume Nodes.
The Point of Control is the single price level at which the most volume was traded during a specified period. It represents the 'fair value' according to market participants and acts as a magnet — price tends to gravitate toward the POC. The naked POC (from a prior session that was never revisited) is one of the most reliable support/resistance levels in order flow trading.
Time and sales, commonly referred to as the tape, displays every executed trade in real time, showing the price, size, and whether the trade was executed at the bid or the ask. Tape reading is the art of interpreting this flow of transactions to gauge real-time buying and selling pressure, identify institutional activity, and spot absorption or exhaustion before they appear on charts.
Absorption occurs when large limit orders absorb aggressive market orders without allowing price to move. For example, price hits a level where heavy sell market orders are absorbed by even larger buy limit orders — the aggression is neutralised. Exhaustion is when aggressive buying/selling loses momentum, visible through declining delta and volume at price extremes.