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Brokerage · Your Book
Demo only — we keep the brand, type and last four digits, never the full number or CVV, and nothing leaves your browser.
Simulated brokerage for design demonstration. Balances, fills, and P/L live in your browser; nothing is an account statement, an offer, or investment advice.
Simulation — don't enter a real card. Try test digits like 4242 4242 4242 4242; only the masked last four is ever saved.