Stocks
Stock Profit / Loss Calculator
Net P&L after commissions for a stock trade.
How the calculation works
Gross P&L is (exit − entry) × shares. Net P&L subtracts the commissions/fees you enter. Return on cost divides net P&L by (entry × shares + commissions) so fees reduce both profit and the capital base used for the percentage.
Formula & example
Net P&L = (exit − entry) × shares − commissions
200 shares $25 → $28.50 with $5 fees → gross $700, net $695.
Why use this calculator
Commission-free marketing still leaves spreads, SEC fees, and occasional commissions. Netting them prevents celebrating a gross winner that is flat or negative after costs.
When to use it
Use for round-trip stock or ETF trades when you care about net outcome after friction — planning or post-trade review.
Tips for accurate results
- Include SEC/exchange fees if material.
- Shorts: swap entry/exit accordingly.
FAQ
Does this handle short sales?
Enter the sell price as entry and buy-to-cover as exit, or invert the prices so (exit − entry) reflects your direction.
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