Book Flip — Signal Playbook

What it detects

The order book swings from clearly ask-heavy to clearly bid-heavy (or vice versa) inside a single candle — a fast change of control at the touch.

How Book Flip paints across a heatmap row — the colour language it speaks on the live map.

How VYX surfaces it

VYX evaluates Book Flip live on every candle across 300+ Hyperliquid markets and paints it onto the heatmap, so an unusual momentum reading stands out at a glance instead of hiding in a watchlist. That is the job it does in the workflow: it is a scan filter and a piece of context, not an automatic entry. Scan the map for where Book Flip is firing, focus that market to read the signal against price and the confirmation cues below, and let the next candle or two resolve before acting on it.

How to play it

Use it as scanner context, not an automatic entry:

• Treat a flip as a potential turning point, not a confirmed reversal.
• The new heavy side is the direction the book is now leaning.
• Let the next candle or two resolve before committing.
• Strongest after a stretched move in the opposite direction (exhaustion → flip).

Confirmation

What strengthens the read:

• The new side holds for the following candle (it sticks).
• Aggressive flow / OFI confirm the new direction.
• Price makes a higher low / lower high in the flip’s direction.

Invalidation

What kills it:

• The book flips straight back — it was noise.
• Price ignores the flip and continues the prior trend.
• It happens on a thin, wide book (low conviction).

Risk & honest evidence

Respect the limits:

• Flips are common in choppy regimes and produce whipsaws.
• A single-candle event — easy to over-trade.
• Evidence: grounded in market-microstructure research. VYX's own live backtest is still accruing — treat this as scanner context, not a proven edge.