Alerts

Alerts are armed from the bell in the status bar. They are evaluated in your browser against the live feed, so they fire while the tab is open and stop when you close it. There is no account and nothing to configure server-side.

Every alert is created against the primary instrument's feed, and each one shows as armed, triggered or disabled in the bell's list.

The alert types

Price

Fires when price crosses a level you set, in either direction or in one. The plain one, and still the one most used.

Large trade

Fires on a single print above a size threshold. Catches the individual clip rather than accumulated flow.

Liquidation

Fires on a forced liquidation above a size threshold. Useful as a beacon for where leverage was sitting, not as a signal on its own.

Volume spike

Fires when a candle's volume exceeds its rolling average by your multiplier. The rolling average updates incrementally per candle, so it adapts to the session.

Delta spike

Fires when a candle's net delta — buys minus sells — exceeds the rolling average of absolute delta by your multiplier.

Extreme delta is aggressive directional conviction. High delta with little price movement is absorption. High delta on a breakout is genuine momentum. The alert tells you the delta was extreme; the price reaction tells you which of the two you got.

Finished auction

Detects completed auctions at candle extremes: consecutive zero-volume price levels at the high (no more buyers) or at the low (no more sellers).

A single zero level is common. A triple zero is rare and a much stronger statement that the extreme is defended.

CVD divergence

Fires when price and cumulative volume delta move in opposite directions over your lookback.

Price up with CVD down is distribution — selling into strength. Price down with CVD up is accumulation — buying into weakness.

Exhaustion print

Fires on extreme volume at a candle's high or low combined with wick rejection: a push that took real size and failed.

High volume at the top with an upper wick is buying exhaustion; high volume at the bottom with a lower wick is selling exhaustion. You configure the volume ratio above the average level and the minimum wick as a percentage of candle range.

Large wall

Fires when a large limit order appears in the book. It measures the change in quantity at a level rather than the absolute size, so it catches walls being placed rather than walls that have been sitting there all session.

Bid walls signal support being defended; ask walls signal resistance building.

Absorption

Fires when aggressive flow accumulates inside a price zone you define and price stays inside that zone.

Sells hitting bids while the zone holds is bullish absorption. Buys hitting offers while the zone holds is bearish absorption. Wicks slightly outside the zone are tolerated; a sustained break resets the accumulator.

There is no deadline — an absorption alert stays armed indefinitely until it fires or you remove it.

The fast way to create one: draw a rectangle on the footprint chart, right-click it, and choose Create absorption alert from zone.

Sticky wall

Fires when a persistent large resting order sits near the mid. It aggregates the whole book into price buckets per side and triggers when a bucket holds at least your notional threshold for at least your duration, within a maximum distance from mid.

The difference from Large wall is time: this one requires the size to stay. It carries hysteresis, so a wall stays tracked while it remains above 75% of the entry threshold, and a re-fire window dedupes the same wall being pulled and replaced at the same level.

Price velocity

Fires on an abrupt price move normalised to recent volatility. Rather than a fixed percentage, it triggers on a large z-score: the windowed return against an exponentially weighted estimate of realised volatility.

The effect is that the same 0.3% move is noise during a scheduled event and a real signal in dead Asian tape. It goes quiet in sustained high-volatility trends and loud on surprises out of calm. Crypto returns are fat-tailed, so the threshold runs high — a setting around 4 gives a few per session, around 6 gives one or two a week.

It needs roughly five to ten minutes after creation to warm its volatility estimate from live candles, and stays silent until then.

Practical notes

Alerts are per browser tab. Close the tab and the evaluation stops. Nothing is queued and replayed on your return.

A tight threshold is worse than no alert. Volume, delta and velocity alerts all key off rolling statistics, so setting the multiplier near 1 produces a constant stream you will start ignoring within an hour. Start loose and tighten.

Do not study an alert from its own log. The alert log is a record of when your threshold was crossed, not a record of what the market did next. Judging whether an alert type is useful requires a separate measurement of the outcome.

Sound and desktop notification are per alert, so a set of background alerts can stay silent while the two you actually care about make noise.