Stock Return Calculator

Stock return measures how much a holding earned relative to what it cost you, expressed as a percentage of your cost basis. It folds together two sources of gain: the rise (or fall) in the share price between buying and selling, and any dividends the company paid while you owned the shares. In the worked example a position bought for a $5,005 cost basis ends up $2,690 ahead, which is a 53.75% total return.

Price return counts only the change in the share price — the gap between what you paid and what you sold for. Total return adds the dividends you collected on top of that price movement, so it captures the full reward of owning the stock. In the example the price return is 49.75% while the dividends add another 4.00%, lifting the total return to 53.75%. Ignoring dividends understates how a stock actually performed.

Dividends are cash the company pays you for holding its shares, and the calculator adds them straight to your proceeds. They lift your total return above the price move alone, and because they arrive while you still own the shares they also lower the price you need to sell at to break even. In the example $200 of dividends contribute 4.00 percentage points to the headline return and pull the break-even price down to $48.10.

Brokerage commissions and platform fees are real money that never reaches your pocket, so the calculator builds buy commissions into your cost basis and subtracts sell commissions from your proceeds. Fee drag is the size of the bite they take out of your return: the gap between the return you would have earned with no costs and the return after they are charged. In the example the before-fee return is 54.00% and the after-fee return is 53.75%, so the fee drag is about 0.25 percentage points.

They tax two different slices of your reward. Capital-gains tax applies to the profit on the share price — your gain when you sell — while dividend tax applies to the income the company paid you along the way. The calculator works each out separately and only on the relevant amount. In the example a 15% capital-gains rate on the $2,490 gain is $373.50, a 15% dividend rate on $200 is $30.00, and the two together leave an after-tax profit of $2,286.50.

The total return is the whole gain over the entire holding period, while the annualized return (CAGR) is the steady yearly rate that would compound up to that same result. Because each year's growth builds on the last, the constant annual rate is smaller than simply dividing the total by the number of years. In the example a 53.75% total return over three years is 15.42% a year compounded, noticeably below the 17.92% you would get from a naive simple average.

The break-even price is the share price at which you would walk away exactly even — no profit, no loss — after accounting for what you paid, the commissions on both sides, and the dividends you already banked. Sell above it and you are in profit; sell below it and you are taking a loss. Dividends push it down because cash you have already received reduces how much the sale itself has to recover. In the example the break-even price is $48.10, below the $50 you originally paid, thanks to the $200 of dividends.

You enter a split factor and the tool adjusts so your return stays consistent. A 2-for-1 forward split doubles your effective share count and halves the split-adjusted price you paid per share, while a reverse split does the opposite. Because the total money in and out is unchanged, your percentage return is the same whether or not a split happened — the split factor simply keeps the per-share figures comparable across the event.

Instead of reading the return out of your trade, the reverse modes fix the answer you want and solve for one missing input. You can ask what sell price, buy price, share count or dividend would hit a target, what return a particular exit implies, how large an investment you would need, or what price marks your break-even. They turn the calculator from a scorekeeper into a planning tool — for instance, working out the exit price that would deliver the return you are aiming for before you ever place the trade.

Inflation erodes what your gain can actually buy, so a real return restates the result in today's purchasing power rather than raw currency. The calculator deflates your nominal return by the inflation that ran over the holding period. In the example, with inflation at 3% a year, the 53.75% nominal total return is worth about 40.70% in real terms, and the 15.42% annual rate becomes roughly 12.05% a year.

Gain per share spreads your capital gain — the price-side profit, net of commissions — across the shares you held, so you can read the result on a single-share basis. It deliberately leaves dividends aside, so it is not the same as total profit divided by shares. In the example the share price rose by $25, but after the $5 buy and $5 sell commissions are shared out, the gain per share works out to $24.90 (the $2,490 capital gain over 100 shares).

The before-fee return shows how the trade would have performed in a world with no brokerage charges, while the after-fee return reflects what you actually earned once commissions and platform fees were taken out. Comparing the two makes the cost of trading visible at a glance. In the example the before-fee return is 54.00% and the after-fee figure is 53.75%, a difference of about 0.25 percentage points.

The before-tax return is your profit before any tax authority takes a share; the after-tax return is what remains once capital-gains tax on your gain and dividend tax on your income have both been applied. Tax is charged only on a positive gain, never on a loss. In the example, before tax the profit is $2,690 for a 53.75% return, and after $403.50 of combined tax it falls to $2,286.50, a 45.68% return.

You have two options. You can type the length directly as years, months and days, or you can enter the date you bought and the date you sold and let the calculator count the exact span between them. Either way the holding period feeds the annualized return, so a short hold and a long hold with the same total gain will report very different yearly rates.

A plain percentage-change calculator only compares the buy price with the sell price and stops there. This tool goes further: it adds dividends, subtracts commissions and fees, applies dividend and capital-gains tax, annualizes the result, adjusts for inflation, handles stock splits and solves reverse scenarios. The bare price move in the example is 49.75%, but the full picture — dividends, fees, time and tax — tells a richer and more honest story.

No. The calculator gives an estimate to help you understand a trade, not personalised tax or investment advice. Capital-gains and dividend tax rules, rates, allowances and holding-period treatments vary widely between countries and change over time, and the figures here are a simplified model. Always confirm your own position with a qualified professional before acting on it.

It models a single purchase and a single sale of one holding, so it does not handle multiple lots bought at different prices, dollar-cost-averaging over many dates, or partial sells. If you added to a position over time or sold it in pieces, a tool built for dated cash flows will reflect the timing more accurately. For those cases, see the related calculators linked alongside this one.