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feat: Add target price and risk/reward calculations to position sizing

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Bobby Abellana (aider) 2025-02-06 21:22:27 -08:00
parent 5f7c02a470
commit a536ec5e15
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GPG Key ID: 647714CC45F3647B
2 changed files with 24 additions and 6 deletions
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12
src/trading/main.py
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@ -30,15 +30,21 @@ def main():
if choice == "1":
try:
entry_price = get_float_input("Enter entry price: $")
target_price = get_float_input("Enter target price: $")
position = calculator.calculate_position_size(entry_price)
position = calculator.calculate_position_size(entry_price, target_price)
print("\nPosition Details:")
print(f"Shares: {position['shares']}")
print(f"Position Value: ${position['position_value']:.2f}")
print(f"Risk Amount: ${position['risk_amount']:.2f}")
print(f"Entry Price: ${entry_price:.2f}")
print(f"Stop Loss Price: ${position['stop_loss']:.2f}")
print(f"Max Loss at Stop: ${position['risk_amount']:.2f}") # This is your 1% risk
print(f"Target Price: ${position['target_price']:.2f}")
print(f"\nRisk Analysis:")
print(f"Risk Amount (1%): ${position['risk_amount']:.2f}")
print(f"Potential Loss: ${position['potential_loss']:.2f}")
print(f"Potential Profit: ${position['potential_profit']:.2f}")
print(f"Risk/Reward Ratio: {position['risk_reward_ratio']:.2f}")
except ValueError as e:
print(f"Error: {e}")

18
src/trading/position_calculator.py
View File

@ -12,12 +12,13 @@ class PositionCalculator:
self.risk_percentage = risk_percentage / 100.0 # Convert to decimal
self.stop_loss_percentage = stop_loss_percentage / 100.0 # Convert to decimal
def calculate_position_size(self, entry_price: float) -> dict:
def calculate_position_size(self, entry_price: float, target_price: float = None) -> dict:
"""
Calculate position size based on risk parameters
Args:
entry_price (float): Planned entry price
target_price (float, optional): Target price for the trade
Returns:
dict: Position details including shares and dollar amounts
@ -40,10 +41,21 @@ class PositionCalculator:
# Calculate total position value
position_value = shares * entry_price
return {
result = {
"shares": shares,
"position_value": position_value,
"risk_amount": risk_amount,
"risk_per_share": risk_per_share,
"stop_loss": stop_loss
"stop_loss": stop_loss,
"potential_loss": shares * (stop_loss - entry_price)
}
# Add target price calculations if provided
if target_price:
result.update({
"target_price": target_price,
"potential_profit": shares * (target_price - entry_price),
"risk_reward_ratio": abs((target_price - entry_price) / (entry_price - stop_loss))
})
return result