SEIZ Indicator

SEIZ: Statistical External & Internal Zones

How far each candle usually goes, inside or beyond the last candle, on sixteen timeframes.

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16Timeframes, 15m to 1W
18Years of futures data
4Percentile bands per zone

A candle can only do four things

Take any candle on any timeframe. Its high either stays inside the last candle’s range or pushes above it. Its low either stays inside or pushes below it. That’s all there is: an internal high or an external high, and an internal low or an external low.

SEIZ gives each of the four its own zone, and splits every zone into four percentile bands: the 50th, 75th, 85th and 99th. The deeper the colour, the rarer the move.

Diagram: the last candle's range, and the four things the next candle can do: an internal high, an internal low, an external high or an external low, each with four percentile bands.
The four outcomes (a diagram, not to scale). Mint dots mark the extreme each one is about.
  • External highAbove the last high50th75th85th99th ✕
  • Internal highInside the last range50th75th85th99th ✕
  • Internal lowInside the last range50th75th85th99th ✕
  • External lowBelow the last low50th75th85th99th ✕
  • Stat ZoneOptional, one box per sideTypical reach, per side

Why percentiles, not the average ± standard deviations

The usual way to draw a “normal” range is the average plus or minus a few standard deviations. That works for a bell curve. Candles aren’t one.

Candle sizes have a long tail. Most candles are smaller than the average, because every so often there’s a huge one, and each one drags the average up and the deviation even more. So the first deviation band sits too far out for a normal candle, and the second still falls short of the extremes.

One wild session moves every deviation band; the percentiles only move at the very edge. And deviation bands are the same width on both sides. Candles aren’t, so the lower band can land below zero, where no candle can be.

A percentile just counts what actually happened, to candles that made the same move.

Of past candles that made the same move

  • 50th50%had already stopped
  • 75th75%had already stopped
  • 85th15%went further
  • 99th ✕1%went further
10×more moves past three standard deviations than a bell curve predicts. At least ten times as many, measured on 18 years of real futures data.
Illustrative sample of 500 candle sizes: a long right tail, the average and standard-deviation lines, and the 50th, 75th, 85th and 99th percentiles.
Illustrative sample, not market data. 500 long-tailed candle sizes: the average and the deviation lines (dashed) against the percentiles. The mint shading is the share of candles smaller than the average, and the lower deviation line falls below zero.

Internal zones for continuation. External zones for reversals.

Internal: the candle is still inside the last range

Internal zones mark how far past candles pulled back while their extreme stayed inside the last candle’s range. A dip into an internal-low zone is a normal part of a candle that’s still going somewhere, which is why they’re the zones to watch for continuation of the higher-timeframe candle.

A real daily candle on 30-minute bars: the low dips into the internal-low zone past the 50th percentile, holds above the 75th, and the day closes near its high.
A real daily candle, on 30-minute bars. It dipped into the internal-low zone, just past the 50th percentile, deeper than half of past days that stayed inside, and held above the 75th. The rest of the day carried higher and closed near the high. When it took out the last day’s high, SEIZ switched on its own: the internal highs went and the external highs took over, as shown.

External: price has left the last range

External zones start where the last high or low breaks. Each band further out, fewer candles ever kept going. That’s the basis of how a pivot forms: price pushes outside the last candle and runs out of room. They’re the zones to watch for reversals.

A real 4-hour candle on 5-minute bars: it breaks the last high, runs past the 85th percentile of the external-high zone, then turns and closes below its open.
A real 4-hour candle, on 5-minute bars. It broke the last high within minutes and ran past the 85th percentile, where only 15 out of 100 breakouts went further. Then it turned, gave the whole move back and closed below its own open, after taking out the last low as well.

Zones set at the open. And the Stat Zone.

Every timeframe has its own statistics. The zones are set when the candle opens, and they don’t move. Nothing redraws as price runs; the only thing that changes is which side you see once the last high or low breaks.

New since this page was first written: the Stat Zone. A shaded box on each side, with a dashed line through it, that marks the area each timeframe typically reaches. It’s optional: switch it on in the settings, and set an alert for when price enters it.

  • Fixed at the openThe levels you see at the open stay put all candle long.
  • Stat ZoneWhere each timeframe typically gets to, one box per side.
  • AlertsOn every band cross, and on price entering the Stat Zone.
A real daily candle: the high lands inside the external-high Stat Zone, outlined, and price turns lower from there.
A real daily candle, on 30-minute bars, with the Stat Zone on. It broke the last day’s high overnight, and its high landed inside the external-high Stat Zone (the sand box). From there it turned; by the close it was below its own open. The lower box is the internal-low Stat Zone for the same day.

Every timeframe at a glance, and two ways to read it

The dashboard lists all sixteen timeframes and shows the most significant percentile reached on each side, internal or external, plus how much of each candle has completed. You see where every timeframe stands without flicking through charts. The pairings are what make it powerful.

Pairing A: a pivot inside a pullback

The higher timeframe is only in an internal low: a normal dip, still inside the last range. Meanwhile the middle and lower timeframes are stretched into external lows. That’s the lower timeframes forming a pivot inside a higher-timeframe candle that’s only pulling back.

A real 5-minute chart with daily and 1-hour zones: lower timeframes stretched into external lows while the daily is only in an internal low; price then runs higher.
A real moment, on 5-minute bars, with the daily and 1-hour zones. The daily low read 50 Int, while the 15-minute through the 11-hour lows all read Ext, most at the 85th. That low turned out to be the low of the day: price held above the daily’s 75th, ran up through the daily’s internal highs and then took out the last day’s high.

The dashboard at that moment

Pairing B: everything external

The opposite read. Every timeframe is stretched outside its last candle’s range on the same side, and every band further out, fewer candles ever kept going. That’s where a trader might watch for a reversal, and wait for price to show it.

A real 5-minute chart with daily and 1-hour zones: every timeframe external on the high side at the high of the day, then price falls.
A real moment, on 5-minute bars, with the daily and 1-hour zones. The High column read Ext on all sixteen timeframes, from the 15-minute to the weekly, with the 2-hour at the 99th and most of the rest at the 85th. The high of the day had printed three minutes earlier. Price never got back above it that session, and fell 0.75% within the next hour and a half.

The dashboard at that moment

These examples were picked to show each read clearly. Moments like them go both ways; SEIZ shows the odds, it doesn’t call the turn.

What’s in SEIZ [Pro]

  • Sixteen timeframesChoose the zone timeframe, from the 15-minute to the weekly, and use it on any chart timeframe.
  • Four zones, four bandsInternal and external highs and lows, each with the 50th, 75th, 85th and 99th percentile bands.
  • Auto switchingInternal zones give way to external ones the moment the last high or low breaks. Optional.
  • The Stat ZoneA shaded box per side for the area each timeframe typically reaches. Optional.
  • Multi-timeframe dashboardHigh, Low and Progress for every timeframe; show or hide any timeframe or column; dark or light.
  • AlertsOn crosses of each internal or external band, and on price entering the Stat Zone.
  • Your chart, your coloursBand colours, labels, lines and past candles’ zones, all adjustable.
  • 18 years of futures dataThe statistics are built into the indicator. Everything runs inside TradingView.

Pricing Plans

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Annual

$540/annual

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Questions

What does SEIZ actually show?

Four zones per candle: how far its high usually runs inside or above the last candle’s range, and how far its low usually runs inside or below it. Each zone is split into the 50th, 75th, 85th and 99th percentile bands, so you can see at a glance whether a move is routine, rare, or running out of room.

Which chart timeframe should I use it on?

Any. Pick the zone timeframe in the settings, anywhere from 15 minutes to the weekly, and SEIZ draws that timeframe’s zones on the chart you’re on. A lower chart timeframe just shows you more of what happens inside the candle.

Do the zones repaint?

No. A candle’s zones are set when it opens and they don’t move. The only thing that changes is which side you see: once price takes out the last high or low, the internal zones on that side give way to the external ones. You can switch that off and see all four.

What is the Stat Zone?

An optional outlined box on each side that marks the area each timeframe typically reaches. It’s off by default; turn it on in the settings, and set an alert for when price enters it.

What is the ✕ on the 99th?

Of past candles that made the same move, only 1 in 100 went further. It marks the edge of what’s normal for that timeframe.

Can I set alerts?

Yes. Alerts on price crossing each internal or external band, and on price entering the Stat Zone.

Which markets does it work on?

SEIZ is built from 18 years of futures data and draws on any TradingView chart. If you’re unsure whether it suits your market, ask in the Discord before you subscribe.

Is SEIZ a signal?

No. It tells you where a move sits against history. It doesn’t tell you what to do, and past odds aren’t a promise about the next candle.

How do I get access?

Pick a plan below. SEIZ comes with every LevelLogic plan, along with Discord access and ongoing data updates. After checkout you’ll receive access instructions.

Not financial advice. SEIZ is a charting and education tool. Every chart on this page uses real past futures data, picked to show an idea clearly; percentiles describe what happened before and don’t guarantee what price does next. Futures trading carries a substantial risk of loss.