Buys when the close breaks above the upper 20-period Bollinger Band after band width has narrowed to its tightest level of the last 100 bars. Exits when the close falls below the 150-period average.
Best run of 2. EUR/USD, Daily, spread 1.2, from run pf:2026-10-10-EURUSD-D.tsv:6.
| Period | Up to 2026-10-10 |
| Instrument | EUR/USD, Daily |
| Spread | 1.2 points |
| Starting capital | 1,000,000 |
| Costs | Spread only. Commissions and overnight financing are not included. |
| Bars | Up to 200,000 bars, fewer where the instrument has less history |
| Last tested | 2026-10-10 |
Every run
| Market | Timeframe | PF | Trades | Win % | Net | Max DD |
|---|---|---|---|---|---|---|
| EUR/USDBest run | Daily | 2.58 | 80 | 42.50 | 6,918 USD | -2,687 |
| GBP/USD | Daily | 1.37 | 79 | 39.24 | 2,204 USD | -2,077 |
Charts
Above 1.0 made money, below 1.0 lost money.
The code
// ============================================================== // Bollinger Band Squeeze Breakout (long only) // ProRealAlgos Strategy Library | prorealalgos.com // Type: Breakout // Direction: Long only // Timeframe tested: Daily // ============================================================== DEFPARAM CumulateOrders = false ONCE capital = 10000
20 more lines: the entry and exit rules.
Setup
Questions
Yes. The code is ProBuilder and runs as an automated ProOrder system. Backtest it on your own account with your own spread and position size before trading it live.
It was tested on 2 market and timeframe combinations. The best run was EUR/USD, Daily, with a profit factor of 2.58 over 80 trades.
The best run had a maximum drawdown of 2,687 USD at the tested position size, against a net result of 6,918 USD.
It only takes long trades.
Related
The ProRealAlgos community gets the full rules, the complete code and the automated portfolio.