Stock Trading App System Design Template

Ticker is a stock trading app system design template built on a "Midnight Terminal" aesthetic: a near-black charcoal base, raised slate panels split by hairline rules, and cool slate figures set in tabular monospace so every price and ticker aligns column-perfect. Only two saturated colors appear, emerald for gains and coral-red for losses, with a muted electric-cyan reserved for the active tab and primary actions. It reads like a professional trading desk at midnight: calm, exact, and built around numbers as the hero.

The template ships six connected screens that form a complete trading flow. A scrollable Watchlist blotter pairs every ticker with a live sparkline and a tracked-out delta chip, a Stock detail screen with an interactive candlestick chart and key-stats grid, an Order ticket with Market/Limit/Stop selection and a slide-to-confirm bar, a Portfolio with a net-worth hero number, allocation donut and holdings P/L, a Discover hub of top movers and trending themes, and an Activity ledger of filled orders, dividends, and deposits with monospace timestamps.

Use it in Sleek and make it yours: restyle the palette, edit any screen with AI by describing the change, and add the flows your product needs. Then export it to code, copy it into Figma, or hand a prompt to an AI agent to build it for real, a far faster start than a blank canvas.