Handoff
Take the book to your venue.
Watstock never places the order. You export a sealed instruction — IBKR basket, JSON for the Watstock app, or a plain list — and confirm it at your bank or broker. Same picks. Their rails.
Later
Real trades stay at the broker.
- Now. Handoff. You confirm. We never see your cash.
- Next. Optional read-only broker link — so the desk can say “you already hold XOM.” Still no orders.
- Only if licensed. You tap Confirm at their broker. Watstock sends an intent. Their rails execute. We do not become a broker-dealer and we do not hold funds.
Building a house account inside Watstock would break the product. The public scoreboard is the company. Execution is a venue problem.