Displayed Versus Executed
The order book shows intentions that can be cancelled; the trade tape shows what executed. vyx captures intracandle cumulative volume delta (CVD), the largest same-side taker run (a sweep), and the largest single print (a whale order), so you can read aggression directly.
Reading Absorption
When aggressive one-way flow meets an opposite-leaning book and price does not move, that flow is being absorbed — a classic reversal tell. A formula like cvdHigh >= 100000 && imb <= -20 surfaces exactly that across the whole market.
CVD Divergence Is The Tell
The most useful CVD reads are divergences: price makes a new high while CVD does not, or sellers lean on a level and price refuses to break. Scanning for that across 300+ markets is where a tape-reading habit scales.
- Bearish divergence — higher price, lower CVD: buying is thinning into the move.
- Bullish divergence — lower price, higher CVD: selling is being absorbed.
- Treat it as context for chart review, never an automatic entry.
FAQ
What is CVD?
Cumulative volume delta is the running balance of buy-taker minus sell-taker volume. vyx tracks its intracandle high, low, and range.
Are sweeps and whale prints exhaustive?
They capture the largest same-side run and the largest single print per candle, which is enough to flag outsized aggression for review.