How to Calculate Call Option Profit

How to Calculate Call Option Profit | Your Ultimate Guide :root { –primary-color: #004a99; –success-color: #28a745; –background-color: #f8f9fa; –text-color: #333; –border-color: #ddd; –card-background: #fff; –shadow: 0 2px 5px rgba(0,0,0,0.1); } body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(–background-color); color: var(–text-color); line-height: 1.6; margin: 0; padding: 0; } .container { max-width: 1000px; margin: 20px auto; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } header { background-color: var(–primary-color); color: white; padding: 20px 0; text-align: center; margin-bottom: 20px; border-radius: 8px 8px 0 0; } header h1 { margin: 0; font-size: 2.5em; } h2, h3 { color: var(–primary-color); margin-top: 1.5em; margin-bottom: 0.5em; } .calculator-section { background-color: var(–card-background); padding: 30px; border-radius: 8px; box-shadow: var(–shadow); margin-bottom: 30px; } .calculator-section h2 { text-align: center; margin-top: 0; margin-bottom: 20px; } .loan-calc-container { display: flex; flex-direction: column; gap: 15px; } .input-group { display: flex; flex-direction: column; gap: 5px; } .input-group label { font-weight: bold; color: var(–primary-color); } .input-group input[type="number"], .input-group input[type="text"], .input-group select { padding: 10px; border: 1px solid var(–border-color); border-radius: 4px; font-size: 1em; width: calc(100% – 22px); /* Adjust for padding */ } .input-group input[type="number"]:focus, .input-group input[type="text"]:focus, .input-group select:focus { outline: none; border-color: var(–primary-color); box-shadow: 0 0 0 2px rgba(0, 74, 153, 0.2); } .input-group .helper-text { font-size: 0.85em; color: #666; } .error-message { color: red; font-size: 0.8em; margin-top: 5px; display: none; /* Hidden by default */ } .error-message.visible { display: block; } .button-group { display: flex; gap: 10px; margin-top: 20px; justify-content: center; flex-wrap: wrap; } button { padding: 12px 25px; border: none; border-radius: 5px; cursor: pointer; font-size: 1em; font-weight: bold; transition: background-color 0.3s ease; } .btn-calculate { background-color: var(–primary-color); color: white; } .btn-calculate:hover { background-color: #003366; } .btn-reset { background-color: #6c757d; color: white; } .btn-reset:hover { background-color: #5a6268; } .btn-copy { background-color: var(–success-color); color: white; } .btn-copy:hover { background-color: #218838; } #results-container { margin-top: 30px; padding: 25px; background-color: var(–primary-color); color: white; border-radius: 8px; text-align: center; box-shadow: var(–shadow); } #results-container h3 { color: white; margin-bottom: 15px; } .primary-result { font-size: 2.2em; font-weight: bold; margin-bottom: 15px; padding: 10px; background-color: var(–success-color); border-radius: 5px; display: inline-block; } .intermediate-results { display: flex; justify-content: space-around; flex-wrap: wrap; margin-bottom: 20px; gap: 15px; } .intermediate-results div { text-align: center; padding: 10px; background-color: rgba(255, 255, 255, 0.15); border-radius: 5px; flex: 1; min-width: 150px; } .intermediate-results span { font-size: 1.5em; font-weight: bold; display: block; margin-top: 5px; } .formula-explanation { font-size: 0.9em; color: rgba(255, 255, 255, 0.8); margin-top: 10px; } .chart-container { margin-top: 30px; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); text-align: center; } canvas { max-width: 100%; height: auto; } .chart-caption { font-size: 0.9em; color: #666; margin-top: 10px; } table { width: 100%; border-collapse: collapse; margin-top: 20px; box-shadow: var(–shadow); } th, td { padding: 12px 15px; text-align: left; border-bottom: 1px solid var(–border-color); } thead { background-color: var(–primary-color); color: white; } tbody tr:nth-child(even) { background-color: #f2f2f2; } tbody tr:hover { background-color: #e9ecef; } .article-content { margin-top: 30px; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } .article-content h2, .article-content h3 { color: var(–primary-color); } .article-content p { margin-bottom: 1em; } .article-content ul, .article-content ol { margin-left: 20px; margin-bottom: 1em; } .article-content li { margin-bottom: 0.5em; } .article-content a { color: var(–primary-color); text-decoration: none; } .article-content a:hover { text-decoration: underline; } .faq-item { margin-bottom: 15px; padding: 10px; border: 1px solid var(–border-color); border-radius: 4px; } .faq-item h4 { margin: 0 0 5px 0; color: var(–primary-color); cursor: pointer; display: flex; justify-content: space-between; align-items: center; } .faq-item h4::after { content: '+'; font-size: 1.2em; color: var(–primary-color); } .faq-item.open h4::after { content: '-'; } .faq-content { display: none; font-size: 0.95em; color: #555; } .faq-item.open .faq-content { display: block; } .related-tools { margin-top: 30px; padding: 20px; background-color: var(–card-background); border-radius: 8px; box-shadow: var(–shadow); } .related-tools ul { list-style: none; padding: 0; } .related-tools li { margin-bottom: 10px; } .related-tools a { font-weight: bold; } .related-tools p { font-size: 0.9em; color: #555; margin-top: 5px; } @media (min-width: 768px) { .loan-calc-container { flex-direction: column; } .input-group input[type="number"], .input-group input[type="text"], .input-group select { width: calc(100% – 22px); } }

How to Calculate Call Option Profit

Your Essential Guide to Option Trading Success

Call Option Profit Calculator

The current market price of the asset (stock, ETF, etc.).
The price at which you can buy the underlying asset.
The cost to buy one option contract (usually for 100 shares).
Typically 100 for stock options.
Call Option Put Option Select 'Call' for this calculator.

Your Call Option Profit Summary

$0.00
Breakeven Point $0.00
Max Profit $0.00
Total Cost $0.00
Profit = (Current Price – Strike Price – Premium Paid) * Contract Multiplier (if in-the-money)
Breakeven Point = Strike Price + Premium Paid
Max Profit = Unlimited (theoretically)

Call Option Profitability Chart

This chart visualizes potential profit/loss at various underlying prices.

Call Option Profitability Table

Underlying Price Profit/Loss Per Share Total Profit/Loss

What is Call Option Profit?

Understanding how to calculate call option profit is fundamental for any trader looking to leverage the potential upside of an asset's price movement. A call option gives the buyer the right, but not the obligation, to purchase an underlying asset at a specified price (the strike price) on or before a certain date. When you buy a call option, you are essentially betting that the price of the underlying asset will rise significantly above the strike price before the option expires. The profit you make is the difference between the asset's market price at expiration and the strike price, minus the initial cost of the option (the premium). Mastering how to calculate call option profit allows traders to assess potential gains, set realistic expectations, and manage risk effectively.

This calculation is crucial for both speculative traders aiming for high returns and hedgers looking to protect against potential price increases. Common misconceptions include believing that profit is unlimited without considering the premium paid, or underestimating the impact of the breakeven point. Accurately calculating call option profit helps traders avoid these pitfalls and make more informed trading decisions.

Call Option Profit Formula and Mathematical Explanation

The core of understanding how to calculate call option profit lies in a straightforward formula, but it's essential to break down each component.

Profit Calculation:

For a call option buyer, the profit is realized when the underlying asset's price at expiration is higher than the strike price plus the premium paid per share.

Formula:

Profit = (Current Price at Expiration - Strike Price - Premium Paid Per Share) * Contract Multiplier

This formula applies when the option is "in-the-money" (Current Price > Strike Price). If the option expires "out-of-the-money" (Current Price <= Strike Price), the profit is negative, equal to the total premium paid.

Breakeven Point Calculation:

The breakeven point is the underlying asset price at which the option buyer neither makes a profit nor incurs a loss. It's the price where the gain from the asset's price increase exactly offsets the cost of the option.

Formula:

Breakeven Point = Strike Price + Premium Paid Per Share

If the underlying asset's price at expiration is above this breakeven point, the trader makes a profit. If it's below, the trader incurs a loss.

Maximum Profit:

Theoretically, the maximum profit for a long call option is unlimited. This is because the price of the underlying asset can continue to rise indefinitely. The profit increases dollar-for-dollar with every increase in the underlying asset's price above the breakeven point.

Total Cost:

This is the total amount paid to acquire the option contract(s).

Formula:

Total Cost = Premium Paid Per Share * Contract Multiplier

This cost represents the maximum potential loss if the option expires worthless.

Variables Table:

Variable Meaning Unit Typical Range
Current Price at Expiration The market price of the underlying asset when the option contract expires. Currency (e.g., USD) Varies widely based on the asset.
Strike Price The predetermined price at which the option holder can buy the underlying asset. Currency (e.g., USD) Typically set around the current market price or slightly above/below.
Premium Paid Per Share The price paid by the buyer to the seller for the option contract, on a per-share basis. Currency (e.g., USD) $0.01 – $50+ (highly variable)
Contract Multiplier The number of shares represented by a single option contract. Shares Usually 100 for stock options.
Breakeven Point The underlying price at which the option expires with zero profit or loss. Currency (e.g., USD) Strike Price + Premium Paid Per Share
Profit/Loss Per Share The net gain or loss on the option on a per-share basis. Currency (e.g., USD) Can range from negative premium to theoretically unlimited.
Total Profit/Loss The overall profit or loss for the entire option contract. Currency (e.g., USD) Can range from -Total Cost to theoretically unlimited.

Practical Examples (Real-World Use Cases)

Example 1: Bullish Bet on a Tech Stock

Scenario: You believe that TechCorp (TCORP) stock, currently trading at $150 per share, will rise significantly in the next month due to an upcoming product launch. You decide to buy call options.

Inputs:

  • Current Underlying Price: $150.00
  • Strike Price: $155.00
  • Premium Paid Per Share: $3.00
  • Contract Multiplier: 100

Calculations:

  • Total Cost = $3.00 * 100 = $300
  • Breakeven Point = $155.00 + $3.00 = $158.00

Outcome 1 (Profit): If TCORP stock rises to $170 per share by expiration:

  • Profit Per Share = ($170.00 – $155.00 – $3.00) = $12.00
  • Total Profit = $12.00 * 100 = $1,200
  • Net Profit = $1,200 (Total Profit) – $300 (Total Cost) = $900

Interpretation: Your bet paid off. The stock price increased well above your breakeven point, resulting in a substantial profit.

Outcome 2 (Loss): If TCORP stock only rises to $157 per share by expiration:

  • The price ($157) is below the breakeven point ($158).
  • Profit Per Share = ($157.00 – $155.00 – $3.00) = -$1.00
  • Total Profit/Loss = -$1.00 * 100 = -$100
  • Net Loss = $100 (This is less than the initial $300 cost because the stock price rose slightly above the strike price).

Interpretation: The stock price didn't rise enough to cover the premium paid. You incurred a loss, but it's limited to the premium paid plus a small amount due to the price increase above the strike.

Outcome 3 (Max Loss): If TCORP stock is at $150 or less by expiration:

  • The option expires worthless (out-of-the-money).
  • Total Profit/Loss = -$300 (The entire premium paid).

Interpretation: Your prediction was incorrect, and you lost the entire amount invested in the option premium.

Example 2: Hedging Against a Rising Market

Scenario: You own 100 shares of EnergyCo (ENRGY), currently trading at $50 per share. You are concerned that the stock might rise sharply in the short term, making it expensive to buy more shares if needed, but you don't want to sell your current holdings. You buy a call option to protect against a significant price surge.

Inputs:

  • Current Underlying Price: $50.00
  • Strike Price: $55.00
  • Premium Paid Per Share: $1.50
  • Contract Multiplier: 100

Calculations:

  • Total Cost = $1.50 * 100 = $150
  • Breakeven Point = $55.00 + $1.50 = $56.50

Outcome 1 (Price Rises Sharply): If ENRGY stock jumps to $65 per share by expiration:

  • Profit Per Share from Option = ($65.00 – $55.00 – $1.50) = $8.50
  • Total Profit from Option = $8.50 * 100 = $850
  • Net Profit from Option = $850 – $150 (Cost) = $700

Interpretation: Your owned shares are now worth $1,500 more ($6500 – $5000). The call option generated a $700 profit. While the option cost $150, the overall strategy protected you from missing out on significant gains and effectively allowed you to "buy" more shares at $55 (via the option) if you needed them, while your original shares appreciated. The net effect is that your $50 shares are now worth $65, and you have a $700 profit from the option, offset by the $150 cost, meaning you gained $550 from the option itself. The total value increase is $1500 (from shares) + $550 (net option gain) = $2050.

Outcome 2 (Price Stays Flat or Declines): If ENRGY stock is at $52 per share by expiration:

  • The option expires worthless (out-of-the-money).
  • Total Profit/Loss = -$150 (The entire premium paid).

Interpretation: Your owned shares are worth $200 more ($5200 – $5000). The call option expired worthless, resulting in a loss of $150. However, the total outcome is still positive ($200 gain from shares – $150 loss from option = $50 net gain). This strategy successfully hedged against a potential large price increase without limiting the upside of your existing shares significantly, and the cost was minimal if the price didn't move dramatically.

How to Use This Call Option Profit Calculator

Our calculator simplifies the process of understanding potential outcomes for your call option trades. Follow these steps:

  1. Enter Current Underlying Price: Input the current market price of the stock or asset you are trading options on.
  2. Enter Strike Price: Input the strike price of the specific call option contract you are considering or have purchased.
  3. Enter Premium Paid Per Share: Enter the cost you paid (or expect to pay) for the option contract, expressed on a per-share basis. For example, if a contract costs $250 and represents 100 shares, the premium per share is $2.50.
  4. Enter Contract Multiplier: This is typically 100 for most stock options. It represents how many shares one contract controls.
  5. Select Option Type: Ensure 'Call Option' is selected.
  6. Click 'Calculate Profit': The calculator will instantly display:
    • Primary Result (Total Profit/Loss): Your estimated net profit or loss based on the current price.
    • Breakeven Point: The underlying price needed at expiration to avoid a loss.
    • Max Profit: The theoretical maximum profit (unlimited for calls).
    • Total Cost: The total amount paid for the option contract(s).
  7. Analyze the Chart and Table: Visualize potential profit/loss scenarios across a range of underlying prices. The table provides specific data points for quick reference.
  8. Use the 'Copy Results' Button: Easily copy the key figures and assumptions for your records or to share with others.
  9. Use the 'Reset' Button: Clear all fields to start a new calculation.

Decision-Making Guidance: Compare the calculated profit/loss and breakeven point against your trading strategy and risk tolerance. If the potential profit outweighs the risk (premium paid) and the underlying asset's price movement seems plausible, the trade might be attractive. Conversely, if the breakeven point is too far from the current price or the potential profit is minimal compared to the cost, reconsider the trade.

Key Factors That Affect Call Option Profit

Several factors influence the profitability of a call option trade beyond the basic calculation. Understanding these is key to successful options trading:

  1. Time to Expiration (Theta): Options lose value as they approach expiration. This decay, known as Theta, accelerates in the final weeks. A longer time to expiration generally means a higher premium but also more time for the underlying price to move favorably. Shorter-term options are cheaper but decay faster.
  2. Implied Volatility (Vega): Implied volatility (IV) reflects the market's expectation of future price swings. Higher IV increases option premiums (both calls and puts) because there's a greater perceived chance of a large price move. If you buy a call option when IV is high, you pay more, and your profit potential is reduced unless the price move is substantial. Conversely, buying when IV is low can be advantageous.
  3. Underlying Asset Price Movement (Delta): Delta measures how much the option's price is expected to change for a $1 move in the underlying asset. For call options, Delta ranges from 0 to 1. A higher Delta means the option price moves more closely with the underlying asset. Significant price movement in the direction of your bet is crucial for realizing profit.
  4. Interest Rates (Rho): While less impactful for short-dated options, interest rates do affect option pricing. Higher interest rates generally make call options slightly more expensive because holding the underlying asset (which you could potentially buy cheaper with borrowed money) becomes less attractive than holding cash that earns interest.
  5. Dividends: If the underlying stock is expected to pay a dividend before the option expires, it can slightly decrease the price of call options. This is because the stock price typically drops by the dividend amount on the ex-dividend date, making it less likely for the call option to be significantly in-the-money.
  6. Transaction Costs (Commissions & Fees): Every trade incurs costs. Broker commissions, exchange fees, and potential assignment fees can eat into profits. For options, especially those with small premiums or that result in small profits, these costs can significantly impact the net outcome. Always factor these into your profit calculations.
  7. Market Sentiment and News: Broader market trends, economic news, and specific company events can dramatically influence both the underlying asset's price and implied volatility, thereby affecting option profitability.

Frequently Asked Questions (FAQ)

What is the maximum profit for a call option?

Theoretically, the maximum profit for a long call option is unlimited. This is because the price of the underlying asset can rise indefinitely. Your profit increases with every dollar the asset price moves above your breakeven point.

What is the maximum loss for a call option?

The maximum loss for a long call option is limited to the total premium paid for the option contract. This occurs if the option expires out-of-the-money (underlying price at expiration is less than or equal to the strike price).

When should I sell a call option I bought?

You might consider selling (closing) your long call option if:
  • You've reached your profit target.
  • You believe the underlying asset's price won't rise significantly further before expiration.
  • Time decay (Theta) is becoming too significant, and you want to lock in gains or cut losses.
  • Implied volatility has decreased, making the option cheaper to buy back.
  • You need to free up capital for other opportunities.

What happens if the underlying price is exactly the strike price at expiration?

If the underlying price is exactly equal to the strike price at expiration, the call option is considered "at-the-money" and will expire worthless. You will lose the entire premium paid.

How does time decay affect my call option profit?

Time decay, measured by Theta, works against the buyer of a call option. As expiration approaches, the value of the option decreases due to the diminishing time left for the underlying asset price to move favorably. This means even if the underlying price stays the same, your option will be worth less closer to expiration.

What is the difference between intrinsic value and time value?

The price of an option (premium) is composed of two parts: intrinsic value and time value.
  • Intrinsic Value: The amount the option is "in-the-money." For a call option, it's max(0, Current Price - Strike Price).
  • Time Value: The portion of the premium that exceeds the intrinsic value. It represents the possibility that the option will become more profitable before expiration, influenced by factors like time to expiration and implied volatility.
Premium = Intrinsic Value + Time Value

Can I calculate profit before expiration?

Yes, but it's more complex. The calculator above primarily focuses on profit at expiration. Before expiration, the option's price (and thus your potential profit/loss if you sell it) is determined by an options pricing model (like the Black-Scholes model), which considers the current underlying price, strike price, time to expiration, implied volatility, interest rates, and dividends. The profit/loss would be (Current Option Market Price - Premium Paid Per Share) * Contract Multiplier.

What are the risks of buying call options?

The primary risks include:
  • Total Loss of Premium: If the underlying asset price doesn't move sufficiently above the strike price plus premium before expiration, the entire investment can be lost.
  • Time Decay: The value of the option erodes over time, requiring a faster and larger price move in the underlying asset to be profitable.
  • Volatility Risk: A decrease in implied volatility can reduce the option's price even if the underlying asset price moves favorably.
  • Leverage Risk: While leverage magnifies potential gains, it also magnifies losses relative to the initial investment.

© 2023 Your Financial Website. All rights reserved.

Disclaimer: Options trading involves substantial risk and is not suitable for all investors. The information provided is for educational purposes only and should not be considered financial advice.

var chartInstance = null; // Global variable to hold the chart instance function getElement(id) { return document.getElementById(id); } function validateInput(inputId, errorId, minValue, maxValue, isRequired = true) { var input = getElement(inputId); var errorElement = getElement(errorId); var value = parseFloat(input.value); var isValid = true; errorElement.innerText = "; errorElement.classList.remove('visible'); input.style.borderColor = 'var(–border-color)'; if (isRequired && (input.value === " || isNaN(value))) { errorElement.innerText = 'This field is required.'; isValid = false; } else if (!isNaN(value)) { if (minValue !== undefined && value maxValue) { errorElement.innerText = `Value cannot be greater than ${maxValue}.`; isValid = false; } } if (!isValid) { input.style.borderColor = 'red'; } return isValid; } function calculateProfit() { var currentPrice = parseFloat(getElement('currentPrice').value); var strikePrice = parseFloat(getElement('strikePrice').value); var premiumPaid = parseFloat(getElement('premiumPaid').value); var contractMultiplier = parseFloat(getElement('contractMultiplier').value); var optionType = getElement('optionType').value; var allValid = true; allValid = validateInput('currentPrice', 'currentPriceError', 0) && allValid; allValid = validateInput('strikePrice', 'strikePriceError', 0) && allValid; allValid = validateInput('premiumPaid', 'premiumPaidError', 0) && allValid; allValid = validateInput('contractMultiplier', 'contractMultiplierError', 1) && allValid; if (!allValid) { return; } var breakevenPoint = strikePrice + premiumPaid; var totalCost = premiumPaid * contractMultiplier; var profitLossPerShare = 0; var totalProfitLoss = 0; var maxProfit = 'Unlimited'; if (optionType === 'call') { if (currentPrice > strikePrice) { profitLossPerShare = currentPrice – strikePrice – premiumPaid; totalProfitLoss = profitLossPerShare * contractMultiplier; } else { profitLossPerShare = currentPrice – strikePrice – premiumPaid; // Will be negative totalProfitLoss = -totalCost; // Option expires worthless } } else { // Put option logic (though this calculator is for calls) if (currentPrice = 0) { primaryResultElement.style.backgroundColor = 'var(–success-color)'; } else { primaryResultElement.style.backgroundColor = '#dc3545'; // Red for loss } updateChartAndTable(currentPrice, strikePrice, premiumPaid, contractMultiplier, totalCost, breakevenPoint); } function updateChartAndTable(currentPrice, strikePrice, premiumPaid, contractMultiplier, totalCost, breakevenPoint) { var profitTableBody = getElement('profitTable').getElementsByTagName('tbody')[0]; profitTableBody.innerHTML = "; // Clear previous rows var chartDataPoints = []; var prices = []; var profits = []; // Generate data points around current price and breakeven var startPrice = Math.max(0, strikePrice – premiumPaid * 2); var endPrice = strikePrice + premiumPaid * 4; var step = (endPrice – startPrice) / 10; for (var i = 0; i strikePrice) { profitLossPerShare = price – strikePrice – premiumPaid; totalProfitLoss = profitLossPerShare * contractMultiplier; } else { profitLossPerShare = price – strikePrice – premiumPaid; // Negative totalProfitLoss = -totalCost; // Expires worthless } prices.push(price.toFixed(2)); profits.push(totalProfitLoss); // Add row to table var row = profitTableBody.insertRow(); var cell1 = row.insertCell(0); var cell2 = row.insertCell(1); var cell3 = row.insertCell(2); cell1.innerText = '$' + price.toFixed(2); cell2.innerText = '$' + profitLossPerShare.toFixed(2); cell3.innerText = '$' + totalProfitLoss.toFixed(2); if (totalProfitLoss < 0) { cell3.style.color = '#dc3545'; // Red for loss } else { cell3.style.color = 'var(–success-color)'; // Green for profit } } chartDataPoints.push({ x: prices, y: profits }); renderChart(chartDataPoints); } function renderChart(dataPoints) { var ctx = getElement('profitChart').getContext('2d'); // Destroy previous chart instance if it exists if (chartInstance) { chartInstance.destroy(); } var labels = dataPoints[0].x; var data = dataPoints[0].y; chartInstance = new Chart(ctx, { type: 'line', data: { labels: labels, datasets: [{ label: 'Total Profit / Loss ($)', data: data, borderColor: 'var(–primary-color)', backgroundColor: 'rgba(0, 74, 153, 0.1)', fill: true, tension: 0.1 }] }, options: { responsive: true, maintainAspectRatio: false, scales: { y: { beginAtZero: false, ticks: { callback: function(value) { return '$' + value.toLocaleString(); } } }, x: { title: { display: true, text: 'Underlying Price at Expiration ($)' } } }, plugins: { tooltip: { callbacks: { label: function(context) { var label = context.dataset.label || ''; if (label) { label += ': '; } if (context.parsed.y !== null) { label += '$' + context.parsed.y.toLocaleString(); } return label; } } } } } }); } function resetCalculator() { getElement('currentPrice').value = ''; getElement('strikePrice').value = ''; getElement('premiumPaid').value = ''; getElement('contractMultiplier').value = '100'; getElement('optionType').value = 'call'; getElement('primaryResult').innerText = '$0.00'; getElement('breakevenPoint').innerText = '$0.00'; getElement('maxProfit').innerText = '$0.00'; getElement('totalCost').innerText = '$0.00'; getElement('primaryResult').style.backgroundColor = 'var(–success-color)'; // Reset color // Clear errors getElement('currentPriceError').innerText = ''; getElement('currentPriceError').classList.remove('visible'); getElement('strikePriceError').innerText = ''; getElement('strikePriceError').classList.remove('visible'); getElement('premiumPaidError').innerText = ''; getElement('premiumPaidError').classList.remove('visible'); getElement('contractMultiplierError').innerText = ''; getElement('contractMultiplierError').classList.remove('visible'); getElement('optionTypeError').innerText = ''; getElement('optionTypeError').classList.remove('visible'); // Reset input borders getElement('currentPrice').style.borderColor = 'var(–border-color)'; getElement('strikePrice').style.borderColor = 'var(–border-color)'; getElement('premiumPaid').style.borderColor = 'var(–border-color)'; getElement('contractMultiplier').style.borderColor = 'var(–border-color)'; // Clear chart and table var profitTableBody = getElement('profitTable').getElementsByTagName('tbody')[0]; profitTableBody.innerHTML = ''; if (chartInstance) { chartInstance.destroy(); chartInstance = null; } // Optionally render a blank chart or placeholder var ctx = getElement('profitChart').getContext('2d'); ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height); } function copyResults() { var currentPrice = getElement('currentPrice').value || 'N/A'; var strikePrice = getElement('strikePrice').value || 'N/A'; var premiumPaid = getElement('premiumPaid').value || 'N/A'; var contractMultiplier = getElement('contractMultiplier').value || 'N/A'; var optionType = getElement('optionType').value; var primaryResult = getElement('primaryResult').innerText; var breakevenPoint = getElement('breakevenPoint').innerText; var maxProfit = getElement('maxProfit').innerText; var totalCost = getElement('totalCost').innerText; var assumptions = `— Key Assumptions — Current Underlying Price: ${currentPrice} Strike Price: ${strikePrice} Premium Paid Per Share: ${premiumPaid} Contract Multiplier: ${contractMultiplier} Option Type: ${optionType.charAt(0).toUpperCase() + optionType.slice(1)} Option`; var results = `— Calculation Results — Primary Result (Total Profit/Loss): ${primaryResult} Breakeven Point: ${breakevenPoint} Max Profit: ${maxProfit} Total Cost: ${totalCost}`; var textToCopy = `${assumptions}\n\n${results}`; navigator.clipboard.writeText(textToCopy).then(function() { // Optional: Show a confirmation message var copyButton = document.querySelector('.btn-copy'); var originalText = copyButton.innerText; copyButton.innerText = 'Copied!'; setTimeout(function() { copyButton.innerText = originalText; }, 1500); }).catch(function(err) { console.error('Failed to copy text: ', err); // Optional: Show an error message }); } function toggleFaq(element) { var faqItem = element.closest('.faq-item'); faqItem.classList.toggle('open'); } // Initial calculation on load if inputs have default values (optional) // document.addEventListener('DOMContentLoaded', function() { // calculateProfit(); // }); // Add event listeners for real-time updates (optional, can be resource intensive) // var inputs = document.querySelectorAll('.loan-calc-container input, .loan-calc-container select'); // inputs.forEach(function(input) { // input.addEventListener('input', calculateProfit); // });

Leave a Comment