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Date/Time: Thu, 04 Dec 2025 09:52:17 +0000



Post From: Weekly High/Low Study Not Including Sunday in Historical Weeks

[2025-10-17 14:27:03]
User871209 - Posts: 95
Hello Sierra Chart Team,

I’m trying to plot weekly high and low levels for Gold futures (GC), where the futures week starts Sunday 18:00 ET (Globex open) and ends Friday 17:00 ET.

I’m using the “High/Low for Time Period – Extended” study (and also tested Daily OHLC), but I noticed a problem:

For the current week, the high and low include Sunday correctly.

For historical weeks, the study seems to ignore Sunday and only plots Monday–Friday.

I understand this might be related to session alignment or how the study calculates historical bars, but I need a solution that:

Correctly includes Sunday 18:00 for all past weeks.
Works with both historical data and live updates.
Can be applied to intraday charts or overlaid on them.

I’ve tried adjusting Start/End Time, Number of Days, and session settings, but the problem persists for historical weeks.

Could you advise on the correct setup or recommend a study/method to reliably plot Sunday-inclusive weekly high/low levels, both historically and live?

Thanks in advance!