This mean-reversion strategy plots Bollinger Bands and a long-term moving average directly on the price chart. It enters trades when price candles penetrate the outer Bollinger Bands beyond a user-defined body percentage, anticipating a price reversal. Entries
Strategy · Pine Script v4 · On the chart
BB9 MA200 Strategy
A trend-following strategy combining Bollinger Bands with a long-term moving average filter.
GitHub stars106on the repository
Pine versionv4older, still runs
Lines of code43
Settings7inputs
LicenceGPL-3.0
Last update2 years ago18 Sep 2024
Add It to Your TradingView Chart
- 1Copy the scriptPress Copy script above, or the copy button on the code below.
- 2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
- 3Paste over the templateCreate a new strategy, select all of the template text and paste. Press Save and give it a name.
- 4Add it to the chartPress Add to chart. The trades and results appear in the Strategy Tester tab; adjust the settings with the gear icon.
Source Code
43 lines of Pine Script v4 from BB21_MA200_Strategy.pine, published under GPL-3.0. Keep the author's credit and licence lines when you reuse it.
// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © mohanee
//@version=4
strategy(title="BB9_MA200_Strategy", overlay=true, pyramiding=0, initial_capital=10000, default_qty_type=strategy.cash, default_qty_value=100, currency=currency.USD) //default_qty_value=10, default_qty_type=strategy.fixed,
var stopLossVal=0.00
//var qty1=0.00
//variables BEGIN
smaLength=input(200,title="MA Length")
bbLength=input(21,title="BB Length")
bbsrc = input(close, title="BB Source")
mult = input(2.0, minval=0.001, maxval=50, title="StdDev")
stopLoss = input(title="Stop Loss%", defval=5, minval=1)
riskCapital = input(title="Risk % of capital == Based on this trade size is claculated numberOfShares = (AvailableCapital*risk/100) / stopLossPoints", defval=10, minval=1)
sma200=ema(close,smaLength)
plot(sma200, title="SMA 200", color=color.orange)
//bollinger calculation
basis = sma(bbsrc, bbLength)
dev = mult * stdev(bbsrc, bbLength)
upperBand = basis + dev
lowerBand = basis - dev
offset = input(0, "Offset", type = input.integer, minval = -500, maxval = 500)
//plot bb
plot(basis, "Basis", color=color.teal, style=plot.style_circles , offset = offset)
p1 = plot(upperBand, "Upper", color=color.teal, offset = offset)
p2 = plot(lowerBand, "Lower", color=color.teal, offset = offset)
fill(p1, p2, title = "Background", color=color.teal, transp=95)
//Echeck how many units can be purchased based on risk manage ment and stop loss
qty1 = (strategy.equity * riskCapital / 100 ) / (close*stopLoss/100)
//check if cash is sufficient to buy qty1 , if capital not available use the available capital only
qty1:= (qty1 * close >= strategy.equity ) ? (strategy.equity / close) : qty1
//strategy.risk.max_position_size(100)
strategy.entry(id="LE", comment="LE equity="+tostring(strategy.equity ,"######.##")+" risk = " +tostring(strategy.equity * riskCapital * 0.01, "####") + " SL = " +tostring(close * stopLoss * 0.01, "####.##"), qty=qty1 , long=true, when=strategy.position_size<1 and upperBand>sma200 and lowerBand > sma200 and crossover(close, basis) ) // // aroonOsc<0 //(strategy.initial_capital * 0.10)/close
barcolor(color=strategy.position_size>=1? color.blue: na)
//partial Exit
tpVal=strategy.position_size>1 ? strategy.position_avg_price * (1+(stopLoss/100) ) : 0.00
strategy.close(id="LE", comment="Partial points="+tostring(close - strategy.position_avg_price, "####.##"), qty_percent=30 , when=abs(strategy.position_size)>=1 and close>tpVal and crossunder(lowerBand, sma200) ) //close<ema55 and rsi5Val<20 //ema34<ema55
//close All on stop loss
//stoploss
stopLossVal:= strategy.position_size>1 ? strategy.position_avg_price * (1-(stopLoss/100) ) : 0.00
strategy.close_all( comment="SL Exit points="+tostring(close - strategy.position_avg_price, "####.##"), when=abs(strategy.position_size)>=1 and close < stopLossVal ) //close<ema55 and rsi5Val<20 //ema34<ema55 //close<ema89//
strategy.close_all( comment="BB9 X SMA200 points="+tostring(close - strategy.position_avg_price, "####.##"), when=abs(strategy.position_size)>=1 and crossunder(basis, sma200) ) //close<ema55 and rsi5Val<20 //ema34<ema55 //close<ema89
Expand (70 lines)
Overview
BB9 MA200 Strategy plots a 200-period EMA along with standard 21-period Bollinger Bands directly on the price chart. Long entries trigger when both the upper and lower Bollinger Bands are above the 200 EMA and price crosses above the basis line. Position sizing is dynamically computed using input settings for capital risk and stop-loss percentage. Exits occur partially on take-profit targets or fully when price breaches the stop-loss threshold or the basis crosses below the EMA.
- Bollinger Bands with 200 EMA trend filter
- Dynamic position sizing based on capital risk
- Percentage-based stop loss and partial exit logic
- Visual chart overlay of bands and moving average
Details
Published by
hasnocool on GitHub
Code credit
mohanee, as written in the script's header
Type
Strategy, Pine Script v4
Draws
On the price chart
Category
Trend, Volatility & bands, Moving averages
Markets
Any symbol
Timeframes
Any timeframe
Risk Notes
- The strategy enters trades without a stop loss
Topics
analysisbtcusdtcryptocurrencydatapandaspythonsimulationtradingtradingview
Settings
The inputs you can change from the gear icon on the chart. Defaults are the author's.
| Setting | Type | Default | Variable |
|---|---|---|---|
| MA Length | int | 200 | smaLength |
| BB Length | int | 21 | bbLength |
| BB Source | source | close | bbsrc |
| StdDev | float | 2.0 | mult |
| Stop Loss% | int | 5 | stopLoss |
| Risk % of capital == Based on this trade size is claculated numberOfShares = (AvailableCapital*risk/100) / stopLossP | int | 10 | riskCapital |
| Offset | int | 0 | offset |
Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.
Similar Pine Scripts
This overlay strategy targets one-minute ES futures and plots volume-weighted moving-average bands from the open, scaled by a standard-deviation multiple, plus a slower band from ten-minute opens. A higher-timeframe exponential moving average can filter trades
STRG-BBForce is a Bollinger Bands trend-following strategy. It calculates standard Bollinger Bands and tracks directional alignment across the upper, lower, and basis lines. When all three lines slope upward, it opens a long position and closes short positions
This strategy generates buy and sell signals based on Bollinger Band crossovers combined with a simple moving average trend filter. It enters a long position when price crosses above the lower band while trading above the SMA filter line, and enters a short po
This overlay strategy combines a Chandelier Exit with a zero-lag least squares moving average. Although the header mentions Heikin Ashi candles, the calculations use ordinary closes. An ATR trailing stop sets long and short levels, and direction flips when pri
This overlay strategy looks for long pullbacks in an established uptrend. It requires the short entry EMA to sit above the trend EMA by a minimum slope, price to stay within a set pullback of that short EMA, and close to remain above a fixed 60-period EMA. It
Trade Your Charts With a Regulated Broker
Compare brokers that connect to TradingView, with spreads, minimum deposits and leverage side by side.
Compare brokers