Trading & Equities

Stock Profit Calculator

Calculate the exact Net Return and ROI of your trades. Instantly factor in share volume, price deltas, and broker commissions to find your true bottom line.

Last updated: February 24, 2026

Fast Net Profit formatting
True mathematical Return on Investment (ROI)
Accounts for two-way broker commissions

Curious what your taxes will be on this trade? Estimate Capital Gains

Stock Calculator
Profit
Calculate Return on Investment (ROI) and net profit or loss for a stock trade, including broker commissions.

Trade Results

Net Profit / Loss

+$3,550.00

23.67% ROI
Initial Investment$15,000.00
Total Revenue$18,550.00
Net Return$18,550.00

Trading Mechanics

The Spread

Profit isn't generated simply by the stock price going up; it's the delta between your entry and your exit. Your initial investment scales that delta. A $5 move on 100 shares generates a $500 gross return.

Frictional Costs

Taxes, margin interest, and broker commissions are considered frictional costs. They degrade your edge. A profitable trader must generate enough gross margin to overcome the friction of executing the trades themselves.

ROI Context

ROI allows you to compare investments of wildly different sizes. Earning $1,000 profit on a $2,000 risk (50% ROI) represents a vastly superior trading performance than earning $1,000 profit on a $100,000 risk (1% ROI).

Frequently Asked Questions

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