✎Paper Trading Lab
Invite-only · paper money · real market data

Learn investing by watching bots think out loud.

Four practice bots trade stocks and bond funds with fake money and real prices. Every decision comes with a plain-English reason, and every bot races against simply holding the S&P 500.

SPY, just heldthe botthe S&P 500 line is the scoreboard
Every bot races against simply holding the S&P 500. If a bot can't beat that line, the easy option wins.

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No passwords. Invited? The button in your invite email signs you in, and you stay signed in while you keep using the app. Use this form on a new device, or if you're new, to ask for an invite (or just email invite@papertradinglab.app).