Stocks Calculator

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Stock Profit/Loss & ROI Calculator

Total Investment: $0.00

Total Current/Selling Value: $0.00

Profit/Loss: $0.00

Return on Investment (ROI): 0.00%

function calculateStockProfit() { var purchasePrice = parseFloat(document.getElementById('purchasePrice').value); var currentPrice = parseFloat(document.getElementById('currentPrice').value); var numberOfShares = parseFloat(document.getElementById('numberOfShares').value); var buyCommission = parseFloat(document.getElementById('buyCommission').value); var sellCommission = parseFloat(document.getElementById('sellCommission').value); // Validate inputs if (isNaN(purchasePrice) || isNaN(currentPrice) || isNaN(numberOfShares) || isNaN(buyCommission) || isNaN(sellCommission) || purchasePrice < 0 || currentPrice < 0 || numberOfShares < 0 || buyCommission < 0 || sellCommission 0) { roiPercentage = (profitLoss / totalInvestment) * 100; } else if (totalInvestment === 0 && profitLoss > 0) { roiPercentage = Infinity; // Infinite return if invested 0 and made profit } else if (totalInvestment === 0 && profitLoss === 0) { roiPercentage = 0; // No investment, no profit/loss } else if (totalInvestment === 0 && profitLoss < 0) { roiPercentage = -Infinity; // No investment, but somehow lost money (unlikely in this model) } document.getElementById('totalInvestmentDisplay').innerText = '$' + totalInvestment.toFixed(2); document.getElementById('totalValueDisplay').innerText = '$' + totalValue.toFixed(2); document.getElementById('profitLossDisplay').innerText = '$' + profitLoss.toFixed(2); document.getElementById('roiPercentageDisplay').innerText = roiPercentage.toFixed(2) + '%'; } // Calculate on page load with default values window.onload = calculateStockProfit;

Understanding Your Stock Investments with the Profit/Loss & ROI Calculator

Investing in the stock market can be a powerful way to grow your wealth, but understanding the performance of your investments is crucial. Our Stock Profit/Loss & ROI Calculator helps you quickly assess the financial outcome of your stock trades, providing clear insights into how much you've gained or lost, and the efficiency of your investment.

What Does This Calculator Do?

This tool allows you to input key details about your stock purchase and current market value (or selling price) to determine your total investment, the current value of your holdings, your absolute profit or loss, and your Return on Investment (ROI) as a percentage. It accounts for common trading costs like commissions, giving you a more accurate picture of your net financial position.

How to Use the Calculator:

  • Purchase Price per Share: Enter the price at which you originally bought each share of the stock.
  • Current/Selling Price per Share: Input the current market price per share, or the price at which you plan to sell (or have sold) your shares.
  • Number of Shares: Specify the total quantity of shares you own or traded.
  • Buy Commission ($): If you paid a fee to your broker when purchasing the shares, enter that amount here. If your broker offers commission-free trades, you can enter '0'.
  • Sell Commission ($): Similarly, if you anticipate or paid a fee when selling the shares, enter it here.

Understanding the Results:

  • Total Investment: This is the total capital you committed to the trade, including the cost of shares and any buy commissions.
  • Total Current/Selling Value: This represents the total value of your shares at the current or selling price, minus any sell commissions.
  • Profit/Loss: This is the absolute dollar amount you have gained or lost from the investment. A positive number indicates a profit, while a negative number indicates a loss.
  • Return on Investment (ROI): Expressed as a percentage, ROI measures the profitability of your investment relative to its cost. A higher positive percentage means a more efficient and profitable investment.

Example Scenario:

Let's say you bought 50 shares of a company at a purchase price of $75 per share. You paid a buy commission of $5. Currently, the stock is trading at $85 per share, and you anticipate a sell commission of $5 if you were to sell now.

  • Purchase Price per Share: $75
  • Current/Selling Price per Share: $85
  • Number of Shares: 50
  • Buy Commission ($): $5
  • Sell Commission ($): $5

Using the calculator:

  • Total Investment: (50 * $75) + $5 = $3,750 + $5 = $3,755
  • Total Current/Selling Value: (50 * $85) – $5 = $4,250 – $5 = $4,245
  • Profit/Loss: $4,245 – $3,755 = $490
  • Return on Investment (ROI): ($490 / $3,755) * 100% = 13.05%

This example shows a healthy profit and a positive return on your investment.

Important Considerations:

While this calculator provides a clear financial snapshot, remember that it doesn't account for all factors. Dividends received, capital gains taxes, and the time value of money are additional elements that can impact your overall investment performance. Always consult with a financial advisor for personalized investment strategies.

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