Example output
Here’s a Pine Script implementation for a risk management tool that automates position sizing based on 1% account risk per trade. The script dynamically calculates position size based on account balance, ATR-based stop-loss levels, and a configurable take-profit multiple. It includes visual aids and real-time alerts.
### Pine Script Code:
```pinescript
//@version=5
indicator("Risk Management Tool", overlay=true)
// === Inputs ===
// Account settings
account_balance = input.float(title="Account Balance ($)", defval=10000, tooltip="Your total trading account balance.")
// Risk management
risk_percent = input.float(title="Risk per Trade (%)", defval=1, minval=0.1, maxval=100, tooltip="Percent of account balance to risk per trade.")
take_profit_multiple = input.float(title="Take Profit Multiple (x ATR)", defval=2, tooltip="Take profit level as a multiple of ATR.")
atr_multiplier = input.float(title="Stop-Loss ATR Multiplier", defval=1.5, tooltip="Stop-loss distance as a multiple of ATR.")
// ATR settings
atr_length = input.int(title="ATR Length", defval=14, minval=1, tooltip="Length for ATR calculation.")
// === Calculations ===
// Average True Range (ATR)
atr = ta.atr(atr_length)
// Entry Price (current close for simplicity, replace with strategy-specific logic if needed)
entry_price = close
// Stop-loss and Take-profit levels
stop_loss = entry_price - atr * atr_multiplier
take_profit = entry_price + atr * take_profit_multiple
// Risk per trade (in dollars)
risk_dollars = (account_balance * risk_percent) / 100
// Position size calculation (contracts or shares)
position_size = risk_dollars / (entry_price - stop_loss)
// === Visual Aids ===
// Plot stop-loss level
line.new(bar_index[1], stop_loss, bar_index, stop_loss, color=color.red, width=1, style=line.style_dotted, extend=extend.right, title="Stop Loss Line")
// Plot take-profit level
line.new(bar_index[1], take_profit, bar_index, take_profit, color=color.green, width=1, style=line.style_dotted, extend=extend.right, title="Take Profit Line")
// Plot entry level
line.new(bar_index[1], entry_price, bar_index, entry_price, color=color.blue, width=1, style=line.style_solid, extend=extend.right, title="Entry Level Line")
// === Alerts ===
// Notify when close price approaches stop-loss
if ta.crossover(close, stop_loss)
alert("Warning: Price is approaching the stop-loss level!", alert.freq_once_per_bar)
// Notify when close price approaches take-profit
if ta.crossover(close, take_profit)
alert("Good news: Price is nearing the take-profit level!", alert.freq_once_per_bar)
// === Display Position Size ===
label.new(bar_index, high, "Position Size: " + str.tostring(position_size, "#.##") + " units", style=label.style_label_down, color=color.new(color.white, 90))
// === Comments ===
// 1. ATR is used for dynamic stop-loss and take-profit calculation.
// 2. Risk per trade determines the maximum loss in dollar terms based on account balance.
// 3. Position size adjusts dynamically to ensure the dollar risk matches the configured percentage.
// 4. Visual lines and alerts provide key levels and real-time notifications.
```
### How It Works:
1. **Inputs**: The user sets account balance, risk percentage, ATR-based stop-loss, and take-profit multiples.
2. **Dynamic Calculations**:
- Stop-loss is calculated based on ATR.
- Take-profit is set as a multiple of ATR.
- Position size ensures risk per trade is capped at the user-defined percentage.
3. **Visual Aids**: Labeled lines are plotted for entry, stop-loss, and take-profit levels.
4. **Alerts**: Real-time alerts notify users when price nears the stop-loss or take-profit levels.
### Notes:
- Replace the `entry_price` variable with the actual strategy's entry point logic.
- Adjust the script for specific instruments or broker limitations (e.g., lot size, leverage).
- Always backtest thoroughly before using the script live.