Market Inputs
Like optioncreator.com — type premiums manually, no API
How this is traditional
Single index.html file like optioncreator.com / optionbuild.com. No npm, no build, no Node. Drag-drop to Cloudflare Pages → works. View source = all code. Uses Chart.js via CDN.
P/L at ExpiryNow: $100 • BE: —
Net Cost / Credit
-3.00
P/L Now
-3.00
Max Profit
$0.00
Max Loss
$-3.00
Templates (like optioncreator.com presets)
Strategy Legs
Tip: Long Call = buy call. Short Call = sell call. Premium = what you pay/receive. Strike = agreed price.