Prior Week High/Low Indicator: Formula, Settings and How to Read It

Prior Week High/Low draws two horizontal levels on the price chart: the highest high and the lowest low traded during the previous week. Both levels stay fixed for the whole of the current week, so the same two prices are referenced from Monday through Friday.

Senzoukria · Indicators · Updated September 2026

Prior Week High/Low ships with the Senzoukria desktop app, in the Structure & sessions group of the indicator catalogue. It is drawn on the price chart.

What Prior Week High/Low measures

The high is the maximum of every bar high in week N−1 and the low is the minimum of every bar low in that same week; no averaging, no smoothing, no derived pivot arithmetic. Weeks are built on CME trade dates rather than calendar dates, which means the 17:00 CT open belongs to the following trade day and the Sunday evening open is part of Monday's session. The week key is Monday-based and runs Monday to Friday, so the Sunday-to-Monday overnight extremes are counted inside Monday, not left in the previous week. Because the indicator needs a completed previous week, nothing is drawn on the first week of loaded history, and the levels for the current week extend to the right edge of the chart.

The formula, as implemented

This is not a description of how the indicator is usually defined elsewhere — it is what the shipped code computes, documented next to the implementation:

High/Low de la SEMAINE CME précédente, projetés sur la semaine courante. Semaine CME = sessions groupées par DATE DE TRADE (l'open 17:00 CT appartient au jour de trade du lendemain — l'ouverture du dimanche est la session du lundi), du lundi au vendredi (`cmeWeekKey`, base lundi). H = max des highs, L = min des lows sur toutes les barres de la semaine N−1 ; niveaux tracés sur toute la semaine N (bord droit pour la semaine courante). Première semaine chargée → rien (pas de précédente).

How to read it

  • Treat the two lines as reference prices, not as entries: they mark where trade actually stopped last week, and the reaction to them is what carries information.
  • A week that opens between the two levels and stays there has so far traded inside last week's range; a close and follow-through beyond one of them is a week extending past that range.
  • When price returns to a level after moving away from it, look at the footprint and the resting liquidity at that price rather than at the line itself — the line only tells you where to look.
  • Levels that are never touched during the week indicate the market traded away from last week's boundaries; that absence is as readable as a test.
  • Note the distance between the two lines before the week starts: a narrow previous week places both references close to the open, a wide one leaves them far away, and the same indicator therefore behaves very differently from one week to the next.

What it does not show

The levels say where last week's extremes were, and nothing about why price stopped there or who was on the other side — that requires reading the order flow at the level. Shortened or holiday weeks produce a range built from fewer sessions, so the extremes can be narrower than a normal week without that being visible on the chart. If the loaded history has gaps, the computed maximum or minimum will be wrong in the same way the missing bars were wrong, and the first loaded week shows nothing at all because it has no predecessor. Finally, these are price references, not directional signals: the same two lines exist whether the previous week was a trend or a balance.

Using it in Senzoukria

Add it from the Indicators panel of any footprint chart or candle chart. It runs on futures data from Rithmic or Databento and on crypto pairs from Binance and Bybit, on the same engine — the calculation does not change with the venue, only the data feeding it does. Market data subscriptions are billed by the provider, separately from the app.

See the full indicator library, or start with the order flow guide if you are new to reading aggression, delta and absorption.

Frequently asked questions

How is the trading week defined for the prior week high and low?
The week is grouped by CME trade date, not by calendar date. The 17:00 CT open belongs to the next trade day, so the Sunday evening open is part of Monday's session, and the week runs Monday to Friday with a Monday-based key. This is why overnight Sunday activity appears inside Monday's week rather than in the previous one.
Do the prior week high and low change during the week?
No. Both values come from the completed previous CME week and stay fixed from Monday to Friday; only their extension towards the right edge of the chart grows as the current week fills in. They are replaced at the next week boundary. On the first week of loaded history there is no previous week, so nothing is drawn until more history is loaded.
Is the prior week high and low the same as a weekly pivot point?
No. Weekly pivot points are calculated prices derived from a high, low and close through a formula, so the pivot itself was often never traded. The prior week high and low are the raw extremes that the market actually reached during the previous week.

Keep reading

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