What it does
Every strategy faces the same transaction costs and allocation limits, making the replay a cleaner comparison than separate backtests.
Playable demos & bots
JEV Paper-Trading Simulator
Replays historical stock data to compare Jev-directed paper trades with moving-average and buy-and-hold baselines.
Bookmark: JEV Paper-Trading Simulator
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How you can use it
A developer can adapt this code to ask the TypeSafe AI service about stock trends. The outside AI service needs an access key to connect. Your developer must also set up a historical data service. This provides past market numbers for the app to test.
The software asks the AI about several companies at the exact same time. This approach helps the test run much faster. The tool only simulates choices. It never places real market trades with real money.