Stock Gain/Loss Calculator
Calculate your stock price gain or loss in dollars, per share and percentage terms.
Enter your values
Understand this calculation
This calculator measures the change in a stock position using purchase price, current or sale price, and share quantity.
Formula
Worked example
Buying 10 shares at $100 and valuing them at $120 produces a $200 gain, or 20%.
How to interpret the result
A positive figure is a price gain and a negative figure is a price loss. This is a price-only measure unless other cash flows are added separately.
Assumptions & limitations
Dividends, transaction fees, taxes, foreign-exchange effects and other cash flows are excluded.
Practical context
When this calculator is useful
Use gain/loss when you want a direct view of the price movement on a stock position in both currency and percentage terms. It is useful for quickly translating a change in share price into the effect on a specified share count.
How investors commonly use it
Investors may use the percentage result to compare positions of different sizes, while the currency result shows the practical effect on the portfolio before other cash flows and costs.
What this metric does not tell you
This version measures price-only gain or loss. It does not include dividends, taxes, fees, foreign-exchange movements or the timing of multiple purchases, all of which can change realized investment return.