Stock Profit & Return on Investment (ROI) Calculator
Compute net dollar profit, percentage ROI, and breakeven share prices on stock trades.
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How to Use the Stock Profit Calculator: Return on Investment & Breakeven
- 1Input the total number of shares traded.
- 2Enter your purchase price per share and selling price per share.
- 3Add any buy or sell brokerage commissions or exchange fees.
- 4Inspect your net dollar profit, return on investment (ROI), and breakeven exit price.
Formula & How It Works
Stock Profit & ROI Formulas
Calculates net profit after trading fees and percentage return on invested capital.
Worked Examples
150 Shares Bought at $42.50 and Sold at $58.00
Input: 150 shares, Buy: $42.50, Sell: $58.00, $4.95 Buy Fee, $4.95 Sell Fee
Explanation: A $15.50 per-share gain produces $2,325 gross gain, leaving $2,315.10 net profit after $9.90 total transaction commissions.
Frequently Asked Questions
What is the formula for Return on Investment (ROI)?▼
ROI is calculated as (Net Profit / Total Cost Basis) × 100, expressing your gain or loss as a percentage of original capital invested.
Do US stock brokerages charge commissions today?▼
Most major US brokerages offer zero-commission trading on standard listed stocks and ETFs, though nominal SEC and FINRA regulatory fees still apply.
How do dividend payments affect stock profit calculations?▼
Any dividends collected while holding the stock add directly to your total net profit and overall return on investment.
How are stock trade profits taxed?▼
Profits held over one year are taxed at long-term capital gains rates (0%, 15%, or 20%), while profits on shares held one year or less are taxed as ordinary income.
Quick Reference & Conversion Table
| Investment Capital | 10% Stock Gain | 25% Stock Gain | 50% Stock Gain |
|---|---|---|---|
| $2,000 | +$200 Profit | +$500 Profit | +$1,000 Profit |
| $5,000 | +$500 Profit | +$1,250 Profit | +$2,500 Profit |
| $10,000 | +$1,000 Profit | +$2,500 Profit | +$5,000 Profit |
| $25,000 | +$2,500 Profit | +$6,250 Profit | +$12,500 Profit |
⚠️ Common Pitfalls to Avoid
- •Forgetting to factor in capital gains taxes when evaluating actual net cash proceeds.
- •Overlooking small exchange regulatory fees (SEC transaction fees and FINRA TAF fees) on high-volume active trades.
💡 Practical Real-World Uses
- •Evaluating exit orders and setting trailing stop-loss price targets.
- •Tracking trading performance and measuring risk-adjusted returns across your brokerage portfolio.
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