Untested open index: the official opening prices the market never went back to
Every trading day the index has an official opening price. On most days price trades on both sides of it, so it is tested the same day. But on a one-way day — the open is the low or the high of the day — the opening price is left behind, untested. Untested Levels keeps those prices on your chart until price comes back to them. The lines appear on every supported chart: on the index and CFDs as they are, on futures converted with the cash-future difference.
On this page
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- 1Monday 09:00 — the official DAX opening price is 25,855.12. It is also the low of the day: the DAX never trades below it.
- 216:30 — the high of the day: 26,096.93, 242 points above the opening price.
- 3Tuesday 09:00 — the DAX opens at 26,189.62. Monday's opening price is still untested, so Untested Levels keeps it on the chart.
Part of Untested Levels
Free TradingView indicator that marks earlier closes, opens and gaps the market has not traded back to — on index, futures and CFD charts.
Install Untested Levels (free) →What an untested opening price is
The official opening price is the first value of the index on a trading day — on the DAX shortly after 09:00, once the opening trades of its stocks are in. An opening price is tested as soon as price trades at it again. On most days that happens on the day itself: price moves away from the open, comes back through it and trades on both sides.
Only on a one-way day does the opening price survive: the index opens at its low and only goes up, or opens at its high and only goes down. Then the opening price is untested at the end of the day. That is rare — on the DAX it happened three times between December 2025 and mid-October 2026: on 30 April, 13 July and 3 August.
Why traders watch them
- A one-sided start. A day that never looked back at its opening price shows strong buying or selling from the first minute. The price where it started is a level many traders remember.
- The first return. When price finally comes back — sometimes weeks later — the first test is a moment to watch. See the example below.
- Grey means done. After the first touch the line turns grey for the rest of that day; the next day it is gone.
How Untested Levels shows them
The opening prices are the official ones of the index. Today's opening price is left out by default, because Basics already draws it as RTH O index. The lines appear on every supported chart: on the index and CFDs as they are, on futures (main, mini, micro, nano) converted with the current cash-future difference. A related element uses the price of a CFD at the moment the stock market opens: Untested open CFD.
| Default look | Light green, dotted, width 2 · tested today: grey, dotted |
|---|---|
| Labels on the chart | Untested open index and the date (renamable; the price can be added) |
| Switched on by default | Yes — today's opening price left out, because Basics draws it |
| How far back | Up to 1000 trading days (adjustable) |
| Which lines are drawn | The untested opening prices within 25 % of the current price (adjustable) |
| Price on your chart | Futures (main, mini, micro, nano): converted with the current cash-future difference. CFD and index charts: the index value itself |
| Timeframes | Charts from 1 second up to the daily chart; nothing on weekly and monthly charts |
| Markets | Nasdaq-100, S&P 500, Dow, Russell 2000, DAX, FTSE 100 and AEX — all tickers |
The first return, a month later
Click the chart to enlarge it.
Why don't I see the lines?
- There is none nearby.Untested opening prices are rare: most days trade on both sides of their opening price.
- It has been tested.Once price trades at it again, the line turns grey for the rest of that day and is gone the next day.
- It is today's opening price.That one is hidden by default because Basics draws it as RTH O index. Switch off Hide RTH O index to show it here as well.
- Price is far away from them.Only opening prices within 25 % of the current price are drawn. You can change this under General → Level visibility range.
- You are on a weekly or monthly chart.Untested Levels draws on charts from 1 second up to the daily chart.
- Your ticker is not recognised.See the supported tickers — and if yours is missing, let me know: requests are very welcome.
What you can change
In the indicator settings (the gear icon next to Untested Levels on your chart), under Untested index opens:
| Show / hide | Show untested index opens |
|---|---|
| Today's opening price | Hide RTH O index — on by default, because Basics draws it |
| How far back | Historical backfill, default 1000 trading days |
| Colour, width, style | Separately for untested and for tested today |
| Label | Prefix (default Untested open index), with the date (on) and the price (off) |
| Label size, line end, visibility range | Shared with all elements · General |
Charts and defaults on this page: Untested Levels v2.41.9 · updated 21 October 2026.
Frequently asked questions
Why are there so few of these lines?
An opening price is tested on its own day as soon as price trades on both sides of it, which happens on most days. Only days that went one way from the open leave an untested opening price.
What is the difference with Untested open CFD?
Untested open index uses the official opening price of the index. Untested open CFD uses the price of a CFD that follows the index at the moment the stock market opens — these can differ by a few points, or more on a fast open.
Why don't I see today's opening price?
Basics draws it as RTH O index, so Untested Levels hides it by default. Switch off Hide RTH O index if you run Untested Levels without Basics.
How far back does it look?
Up to 1000 trading days — about four years — on every timeframe.
Does it work on a futures chart?
Yes. The opening prices are the index's own, converted to the future's price with the current cash-future difference.
Related levels
See the untested opening prices on your own chart
Untested Levels is free on TradingView. Add it next to Basics on any supported chart — for example the DAX or ES — and the untested opening prices appear by themselves.