Delta vs CVD: Real Taker Volume vs the Candle Proxy
Short answer: Delta is aggressive buy volume minus aggressive sell volume for one bar or period; CVD (cumulative volume delta) is the running sum of delta since the period started. Real delta comes from trade data or an exchange's taker-buy volume. Proxies that infer delta from candle colour can disagree with the real number, sometimes in sign.
Computing real delta from Binance klines
delta = 2 × taker buy volume − total volume
CVD = running sum of delta from the session or week start
Live example: BTCUSDT, Sunday Oct 18, 2026 (1-minute data)
| Window (UTC) | Real delta | Candle proxy |
|---|---|---|
| 02:00 hour (81,657 → 81,831) | +225 BTC | −103 BTC (opposite sign) |
| 16:00–16:48 | −25 BTC | +85 BTC (opposite sign) |
| 13:00–15:59 (81,983 → 81,103) | −193 BTC | −346 BTC (same sign) |
| 00:00–16:48 CVD | +277 BTC | +127 BTC |
In trends the proxy and real delta usually agree on direction; in quiet, two-sided hours they often don’t. That is exactly when delta matters most.
Gold
XAUUSD has no central tape. Real gold delta comes from COMEX futures (GC/MGC) trade data; any delta built from CFD candles is a proxy.
Definitions: delta · CVD · crypto lesson: delta and CVD in crypto
FAQ
What is the difference between delta and CVD?
Delta is per bar or period; CVD adds bar deltas together over the session or week.
How do you calculate delta from Binance data?
From klines: delta = 2 × taker buy base volume − total volume for each bar.
Is TradingView delta accurate?
It depends on the data. Tick-based or exchange taker data is real; candle-colour estimates are proxies.
Does positive delta mean price will rise?
No. Heavy positive delta that fails to move price can point to absorption by passive sellers.
Education only. Not financial advice. Trading involves substantial risk of loss. Updated October 18, 2026.