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bugfixing

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This commit is contained in:
MuslemRahimi 2025-04-09 11:36:24 +02:00
parent 0c5b6b0af5
commit 7a8ca4aa10
1 changed files with 26 additions and 19 deletions
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45
src/routes/options-calculator/+page.svelte
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@ -719,7 +719,6 @@
function calculateMetrics() { function calculateMetrics() {
const multiplier = 100; const multiplier = 100;
let metrics = {};
// Get all legs in the strategy // Get all legs in the strategy
const allLegs = [...userStrategy]; const allLegs = [...userStrategy];
@ -788,9 +787,8 @@
); );
// Calculate net premium for the entire strategy. // Calculate net premium for the entire strategy.
// For each leg, buying incurs a debit and selling generates a credit.
let netPremium = 0; let netPremium = 0;
allLegs?.forEach((leg) => { allLegs.forEach((leg) => {
const quantity = leg.quantity || 1; const quantity = leg.quantity || 1;
const premium = leg.optionPrice * multiplier * quantity; const premium = leg.optionPrice * multiplier * quantity;
if (leg.action === "Buy") { if (leg.action === "Buy") {
@ -800,21 +798,30 @@
} }
}); });
if ( // --- VERTICAL SPREAD HANDLING (UPDATED) ---
buyCalls.length === 1 && if (buyCalls.length === 1 && sellCalls.length === 1) {
sellCalls.length === 1 && const buyCall = buyCalls[0];
sellCalls[0].strike < buyCalls[0].strike const sellCall = sellCalls[0];
) {
const spreadWidth = const spreadWidth =
(buyCalls[0].strike - sellCalls[0].strike) * multiplier; Math.abs(buyCall.strike - sellCall.strike) * multiplier;
// In a vertical spread, the max profit is the net premium (credit received)
// and the maximum loss equals the spread width minus the net premium. if (buyCall.strike < sellCall.strike) {
const maxProfit = netPremium; // Bull call spread: max loss is net debit, max profit is spread width - net debit
const maxLoss = spreadWidth - netPremium; const maxLoss = -netPremium; // Net debit is negative, convert to positive
metrics = { const maxProfit = spreadWidth - maxLoss;
maxProfit: `$${formatCurrency(maxProfit)}`, metrics = {
maxLoss: `$${formatCurrency(maxLoss)}`, maxProfit: `$${formatCurrency(maxProfit)}`,
}; maxLoss: `$${formatCurrency(maxLoss)}`,
};
} else {
// Bear call spread: max profit is net credit, max loss is spread width - net credit
const maxProfit = netPremium;
const maxLoss = spreadWidth - maxProfit;
metrics = {
maxProfit: `$${formatCurrency(maxProfit)}`,
maxLoss: `$${formatCurrency(maxLoss)}`,
};
}
return metrics; return metrics;
} }
// --- END VERTICAL SPREAD HANDLING --- // --- END VERTICAL SPREAD HANDLING ---
@ -1600,7 +1607,7 @@
> >
<span class="truncate">{selectedStrategy}</span> <span class="truncate">{selectedStrategy}</span>
<svg <svg
class="-mr-1 ml-1 h-5 w-5 xs:ml-2 inline-block" class="-mr-1 ml-3 h-5 w-5 xs:ml-2 inline-block"
viewBox="0 0 20 20" viewBox="0 0 20 20"
fill="currentColor" fill="currentColor"
style="max-width:40px" style="max-width:40px"
@ -1632,7 +1639,7 @@
<span>{strategy.name}</span> <span>{strategy.name}</span>
{#if strategy?.sentiment} {#if strategy?.sentiment}
<span <span
class="badge px-2 text-xs rounded-full {strategy.sentiment === class="ml-2 badge px-2 text-xs rounded-full {strategy.sentiment ===
'Bullish' 'Bullish'
? 'bg-green-100 text-green-800 dark:bg-green-300 dark:text-black' ? 'bg-green-100 text-green-800 dark:bg-green-300 dark:text-black'
: strategy?.sentiment === 'Bearish' : strategy?.sentiment === 'Bearish'