About
Tape is an iPhone-native execution engine. You describe a strategy, set the limits it must trade inside, and the engine does the watching. It is not a brokerage, it does not hold your money, and it does not tell you what to buy.
An institution running a strategy has infrastructure around it: something watching the market continuously, something staging orders against explicit rules, something closing positions when a limit is hit, and a record afterwards that reconciles. An individual trader with a phone has had almost none of that. Retail platforms are built to help you place an order. Very few are built to help you run a strategy.
Tape is an attempt at the second thing. You configure a strategy — from a library of over 120, or by describing one in plain English — and set the envelope it must stay inside: risk per trade, take profit, stop loss, universe, trading hours. The engine then scans, stages orders against those rules, exits on the conditions you set, and writes everything to one journal.
Strategies can run with no AI at all, evaluating only the conditions you configured. They can also run AI-assisted, where a model reads the market context and returns a directional view with a written rationale. Either way the limits are yours, enforced in code, and checked after the model answers rather than before.
Kill switches are checked inside the execution engine, not layered on as a setting. Every path that could place an order has to pass them.
Realised profit and loss is computed from the price actually achieved on the fill. Every live account is reconciled line by line, and the reconciliation is re-run rather than assumed.
Backtests apply the same decide-to-fill lag and liquidity-tiered slippage as the live path, and show gross and net separately. An idealised backtest is worse than none.
Claims on this site trace back to a QA run against the live service. Where something has not been measured, we say so instead of rounding it up.
Tape is not a broker-dealer, not an investment adviser, and not registered with the SEC or FINRA in any capacity. It does not hold customer funds, take custody of assets, recommend securities, or provide personalised investment advice. It does not offer retirement accounts, cash management, deposits, transfers, or any managed-portfolio service.
Practice trading is a simulation Tape runs internally — orders are priced against real market data but never reach a venue and never involve real money. For live trading, orders route to your own SEC- and FINRA-regulated brokerage, and your funds stay in your own account in your own name.
Trading involves risk of loss. Tape does not guarantee, project or protect any outcome, and publishes no trading returns.
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Tape is on iPhone in closed beta. Practice trading needs no brokerage account.
Requires iPhone. Trading involves risk of loss.