US RTH O: the US open price on DAX, FTSE and AEX charts
US RTH O stands for US regular trading hours open: the price of your chart at the moment the US stock market opens — 09:30 in New York, which is the middle of the European afternoon: usually 15:30 in Berlin and Amsterdam and 14:30 in London, one hour earlier in the few weeks a year when the clocks change on different dates. From that moment Wall Street's traders and volume join the market, and the European session often gets a second open. Basics draws that price as a line on DAX, FTSE 100 and AEX charts: futures (main, mini, micro), CFDs and the official index itself. This page explains what the line shows, when it appears and how to adjust it.
On this page
15:30 · US opens17:30 · Xetra closes
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- 115:30 — the US stock market opens (09:30 in New York). At that moment FDAX trades at 25,081, and Basics draws US RTH O from this candle. For the next hour price swings around the line.
- 216:35 — FDAX breaks below the line and slides 156 points, to 24,925 at 17:40.
- 318:15 — after the Xetra close price shoots back up to 25,083, two points above US RTH O, and turns right there.
- 418:50 — FDAX trades at 24,999: 82 points below the line.
Part of Basics
Free TradingView indicator with all session, week and month levels for index, futures and CFD charts.
Install Basics (free) →What US RTH O is
The European stock markets open hours before Wall Street: the DAX and the AEX at 09:00, the FTSE 100 at 08:00 local time. Halfway through their afternoon the US stock market opens, at 09:30 New York time. US index futures have been trading all night, but the moment the cash market opens is when most US volume arrives — and DAX, FTSE and AEX futures and CFDs feel it too.
US RTH O is the price of your own chart at that moment. On an FDAX chart it is FDAX's price at the US open, on a GER40 CFD it is the CFD's price at that moment: no conversion is needed, because every chart simply shows where it traded when the US opened.
Why European traders watch it
For the European afternoon the US open works like a second opening price:
- A second open. Volume and volatility usually jump at the US open. The price at that moment is where the market stood when the biggest group of participants of the day arrived.
- Direction of the afternoon. Trading above US RTH O means buyers have had the upper hand since Wall Street opened; below it, sellers have.
- Retests. When price returns to the line later in the afternoon or evening, it often reacts — as on 8 October in the chart above.
What time is the US open in Europe?
| DAX (Berlin time) | Regular trading hours 09:00–17:30 · US open at 15:30 (14:30 in the clock-change weeks) |
|---|---|
| FTSE 100 (London time) | Regular trading hours 08:00–16:30 · US open at 14:30 (13:30 in the clock-change weeks) |
| AEX (Amsterdam time) | Regular trading hours 09:00–17:30 · US open at 15:30 (14:30 in the clock-change weeks) |
| Clock-change weeks | From the second Sunday of March to the last Sunday of March, and from the last Sunday of October to the first Sunday of November |
When the clocks change, it is one hour earlier for a few weeks. The US switches to summer time on the second Sunday of March and back on the first Sunday of November; Europe does so on the last Sunday of March and the last Sunday of October. In the weeks in between the US opens at 14:30 Berlin and Amsterdam time and 13:30 London time. Basics follows the New York clock, so the line is always drawn at the real US open; you don't have to change anything.
How Basics shows it
US RTH O is drawn on every supported chart of the European markets — futures (main, mini, micro), CFDs and the index itself — each time at that chart's own price at the US open. On a mini or micro future, for example FDXS, you see the price of the main future (FDAX) at that moment, so the line is the same level that traders on the big contract see. On US charts such as ES or NQ there is no separate line: there the US open is the start of regular trading hours itself, shown as RTH O.
| Default look | Olive, solid, width 2 |
|---|---|
| Label on the chart | US RTH O (renamable) |
| Switched on by default | Yes |
| Moment | 09:30 New York — usually 15:30 Berlin and Amsterdam, 14:30 London (one hour earlier in the clock-change weeks) |
| Markets | DAX, FTSE 100 and AEX — all their tickers. Not on the US markets: there it is RTH O |
| Price on your chart | The chart you are looking at, at the US open. On mini and micro futures (for example FDXM or FDXS): the price of the main future |
| Where the line starts | At the candle of the US open |
| Timeframes | Charts from 1 minute up to the daily chart, on seconds charts too, unless the level needs more history than the chart loads; not on weekly or monthly charts |
| Lookback | 1 — today's US open only (up to 20 sessions, set in the indicator settings) |
Not the same as RTH O. On a DAX chart RTH O is the price at 09:00, when Xetra opens; US RTH O is the price at 15:30, when Wall Street opens. Both lines can be on the chart at the same time. The highest and lowest price between those two moments are drawn as EsH and EsL.
The same line on other instruments
Click a chart to enlarge it.
Why don't I see the line?
- The US has not opened yet.The line appears at 09:30 New York time — usually 15:30 Berlin and 14:30 London, one hour earlier in the clock-change weeks. Yesterday's line is removed when the new session starts; to keep it on the chart, set the lookback of US RTH O to 2 or more.
- You are on a US chart.US RTH O is only drawn on DAX, FTSE 100 and AEX charts. On US charts the US open is RTH O.
- You are on a weekly or monthly chart, or a seconds chart.The line is drawn on charts from 1 minute up to the daily chart. On a seconds chart, a level that needs more history than the chart loads is hidden.
- Price is far away from it.Lines are hidden while the level is more than 5 % from the current price, so they don't squeeze the chart. The line returns when price comes closer. You can change this under General → Level visibility range.
- It is switched off.Check the US RTH O box and the master switch Show all objects in 'Session levels' group in the indicator settings.
- 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
Everything about the line can be adjusted in the indicator settings (the gear icon next to Basics on your chart), under Session levels.
| Show / hide | US RTH O checkbox · Session levels |
|---|---|
| Colour, width, style | Any colour · width 1–5 · solid, dashed or dotted |
| Label text | Default US RTH O |
| Lookback | 1–20 sessions (default 1: today only) |
| Label size, line end, visibility range | Shared with all lines · General |
Charts and defaults on this page: Basics v11.72.8 · updated 21 October 2026.
Frequently asked questions
What time does the US stock market open in Germany?
At 15:30 Berlin time (09:30 New York time). For a few weeks a year — when the US and Europe change their clocks on different dates — it is 14:30: from the second Sunday of March to the last Sunday of March, and from the last Sunday of October to the first Sunday of November.
What time does the US stock market open in London?
At 14:30 London time, or 13:30 in the weeks when only one side has changed its clocks. US RTH O on a FTSE 100 chart is drawn at that moment.
Does US RTH O work on a GER40 or UK100 CFD?
Yes. On a CFD the line shows the CFD's own price at the US open. On FDAX it is FDAX's price, and on a mini or micro future such as FDXS the price of FDAX at that moment.
Why don't I see US RTH O on ES or NQ?
On US charts the US open is the start of regular trading hours itself, so that line is RTH O. US RTH O is only for the European markets: DAX, FTSE 100 and AEX.
Do I need to change anything when the clocks change?
No. Basics follows the New York clock, so the line is always drawn at the real US open, also in the weeks when Europe and the US are not on summer time at the same time.
Related levels
See US RTH O on your own chart
Basics is free on TradingView. Add it to any supported European chart — for example FDAX or a UK100 CFD — and the US open appears every afternoon without any setup.