📈 Stock Profit Calculator
Calculate your gross and net realized gains, ROI percentage, break-even share price, and after-tax return on any stock investment.
Trade Summary & Returns
Understanding Realized vs Unrealized Stock Profits
Paper profits only become tangible wealth once your position is closed and all frictional costs are settled. When modeling trades, always subtract round-trip brokerage commissions, regulatory exchange fees, and estimated capital gains tax liability to determine whether the risk-reward profile of the trade justifies the capital committed.
Frequently asked questions
How is net stock profit calculated?
Net stock profit equals total sale proceeds minus total purchase cost, brokerage fees, commissions on both buy and sell orders, and any applicable capital gains tax.
What is the break-even share price?
The break-even price is the exact price per share you must sell at to cover the initial purchase price plus all trading commissions and transaction fees with zero net loss.
How does capital gains tax affect my stock returns?
Short-term capital gains (assets held under a year) are typically taxed at ordinary income tax rates, while long-term gains enjoy discounted tax brackets. Factoring tax into your profit calculations shows your true net take-home return.
Is my trading data uploaded to any server?
No. All trade entries, prices, and profit calculations execute 100% locally in your web browser. Zero financial data is ever transmitted or logged.