MetaTrader 4 indicator
Double Bottom Chart Pattern Indicator for MT4
Spot double bottom patterns the moment they form. The indicator scans your MetaTrader 4 chart, joins the two lows, marks the breakout level at the middle high and sounds an alert, so you stop hunting for the pattern by eye.
- MetaTrader 4
- Any symbol
- Any timeframe
- Sound alerts
The pattern
What is a double bottom pattern?
A double bottom is a classic reversal structure that looks like the letter W. Price falls to a low, bounces to a middle high, then falls again to a second low at a similar level before turning up. The two lows show that sellers failed to push price lower a second time.
The middle high is the key level. Traders watch for price to move back up toward it, and treat a break above it as the point where the pattern is considered complete. Until then, a double bottom is only a possibility, not a confirmation.
The pattern is easy to misjudge by eye and slow to mark on every chart. The Double Bottom Chart Pattern Indicator for MT4 does that scanning for you on every bar, so you can spend your time on the trade instead of the trendline.
Features
Everything you need to trade double bottoms on MT4
A chart-window indicator built for one job: finding double bottom formations quickly, drawing them clearly and telling you when a new one appears.
Automatic double bottom detection
Scans the visible history and every new bar for double bottom formations. No manual drawing, no hunting for matching lows by eye.
Small, medium and large sizes
Look for compact formations, mid-sized ones or wide structures. Switch each size on or off to match the scale you trade.
Bottom line drawn for you
A trendline joins the two lows so the base of the formation is clear at a glance. It is a standard MT4 trend line you can select and inspect.
Breakout line at the middle high
A horizontal line marks the middle high of the pattern, giving you a clear reference level to watch as price approaches it.
Sound and log alerts
When a formation appears on the live bar, the indicator plays your chosen sound file and writes a message to the Experts log, so you do not have to watch the screen.
Full control of line style
Choose separate colors for the bottom line and the breakout line, and set the line width. Match your chart theme or make the pattern stand out.
Detection marker and data buffer
A dot marks each bar where a formation is detected, and the same value is held in an indicator buffer you can read from your own tools.
Any symbol, any timeframe
Runs on every instrument your broker offers in MetaTrader 4 and on every timeframe from M1 to monthly. Nothing to configure per market.
Pattern sizes
Choose the double bottom size that fits your trading
Double bottoms come in different scales. Pick the sizes you care about and leave the rest off.
Small
Compact formations
Short structures that develop over a handful of bars. Suited to lower timeframes and fast intraday trading.
Medium
Everyday formations
Mid-sized structures that fit most day trading and short swing setups. A balanced choice for general use.
Large
Wide formations
Big structures that take longer to build. Useful on higher timeframes for swing and position traders.
All three sizes are on by default. Turn off the ones you do not trade and the chart stays cleaner.
Setup
Install the Double Bottom Chart Pattern Indicator for MT4 in minutes
-
Copy the file into MetaTrader 4
In MT4, choose File, then Open Data Folder. Place the
.ex4file you received inMQL4/Indicators. Restart MT4, or right-click the Navigator and choose Refresh. The file is already compiled, so there is nothing to compile. -
Attach it to a chart
Open any symbol and timeframe, find the indicator under Navigator, Indicators, and drag it onto the chart.
-
Pick your pattern sizes and style
In the inputs window, enable the sizes you want and choose line colors and width. The defaults work well out of the box.
-
Let the chart do the scanning
Formations appear with their lines and a detection dot. Keep alerts on and MT4 will play a sound when a new one is detected on the live bar.
Requires MetaTrader 4 build 600 or newer. You receive a ready-to-use .ex4 file, so no MetaEditor compile step is needed.
In practice
How traders use double bottom patterns
A double bottom can fail like any other pattern. Many traders wait for confirmation and place stops with that in mind. The indicator finds the pattern. Your plan decides what to do with it.
Breakout watching
Use the orange breakout line as a reference level. Watch how price behaves as it reaches the line, and wait for your own confirmation before acting.
Support zone context
Two lows at a similar level can mark an area where sellers stepped back twice. Combine the bottom line with the support and demand zones you already trade.
Reversal setups
Traders often look for a double bottom after a decline as a sign that selling pressure may be fading. Treat it as context, not a signal on its own.
Multi-timeframe confirmation
Run the Large size on a higher timeframe for the bigger picture and the Small size on a lower one to time entries within it.
Settings
Double bottom indicator inputs you can adjust
Every option appears in the standard MT4 inputs window when you attach the indicator.
| Input | Default | What it does |
|---|---|---|
EnableSmall |
true | Look for small double bottom formations. |
EnableMedium |
true | Look for medium-sized formations. |
EnableLarge |
true | Look for large formations. |
Range |
10 | General scan sensitivity setting. The default suits most charts; change it only if you want to experiment. |
SetAlert |
true | Play a sound and write to the Experts log when a formation appears on the live bar. |
SoundAlertFile |
notify.wav | Sound file played by the alert. Use any file in your MT4 Sounds folder. |
TopLineColor |
SkyBlue | Color of the bottom line that joins the two lows. |
SupportLineColor |
Orange | Color of the horizontal breakout line at the middle high. |
LineWidth |
2 | Thickness of the pattern lines and detection dot. |
Compatibility
Requirements and compatibility
- Platform
- MetaTrader 4, build 600 or newer
- File type
- Compiled .ex4 indicator
- Indicator type
- Chart window overlay
- Symbols
- Any instrument your broker offers
- Timeframes
- M1 to MN
- Alerts
- Sound file and Experts log message
- Trading
- Analysis only, places no orders
FAQ
Double Bottom indicator FAQ
What does a double bottom indicator do?
It scans price for the double bottom, a pattern where price falls to a low, rebounds, then returns to a similar low. When it finds one, it draws a bottom line through the two lows and a breakout line at the middle high on your MT4 chart, marks the detection bar and can alert you.
Does it work on every symbol and timeframe?
Yes. It runs on any symbol your broker offers in MetaTrader 4, from forex pairs to metals, indices and crypto CFDs, and on every timeframe from M1 to monthly.
What is the difference between small, medium and large patterns?
The three sizes look for formations of different scales. Small suits quick intraday structures, medium suits everyday trading, and large picks up wide, slow-forming structures on higher timeframes. You can enable any combination.
How do the alerts work?
With alerts enabled, the indicator plays a sound file and writes a message to the Experts log when a formation appears on the live bar. The default sound is notify.wav, and you can point it at any file in your MT4 Sounds folder.
Does it place trades for me?
No. It is an analysis tool that marks patterns on your chart. It does not open, modify or close orders, so every trading decision stays with you.
Can the signal change while a bar is still forming?
The live bar is still forming, so what you see on it can differ from the closed bar. Many traders wait for the bar to close before acting on an alert.
What file do I receive and do I need to compile it?
You receive a compiled .ex4 file. Copy it to MQL4/Indicators and refresh the Navigator. There is nothing to compile, and the source code is not included.
Can I read the signal from an Expert Advisor?
The indicator exposes one data buffer that holds a value on bars where a formation is detected. You can read it from your own tools with iCustom.
Does a double bottom guarantee a profitable trade?
No chart pattern does. A double bottom can fail, so use the indicator alongside your own analysis, confirmation and risk management.
Get started
Add the Double Bottom Chart Pattern Indicator for MT4 to your charts
Stop marking double bottoms by hand. Attach the indicator, choose your pattern sizes and let MetaTrader 4 tell you when a new formation appears.
Trading leveraged products such as forex and CFDs carries a high level of risk and may not be suitable for everyone. You can lose more than your initial deposit.
The Double Bottom Chart Pattern Indicator for MT4 is a charting tool for MetaTrader 4. It is not financial advice and does not guarantee results. Past patterns do not predict future price movement. MetaTrader is a trademark of its respective owner.
