Research Lab
Look backward carefully. Everything here is history, not a forecast.
Market Explorer
Prices, returns, volatility and drawdowns for any stock and date range. Compare several stocks with the S&P 500.
Open → BacktestingTest entry and exit rules with commissions, slippage and a benchmark. Signals use only data available on each day.
Open → Track RecordEvery Alpha Finder pick recorded with its date and horizon, then scored against the S&P 500 when the horizon ends. Misses stay in the record.
Open → Alpha Finder validationA walk-forward test of the ranking on past data: how each rank bucket did versus SPY, with coverage and survivorship-bias notes.
Open → Example PortfoliosRule-built example portfolios refreshed on a schedule and measured against SPY from the day each version was recorded.
Open →How VEXA keeps its research honest
- No look-ahead. Backtest signals are computed from closes up to each day and traded at the next day’s close.
- Costs included. Commissions and slippage are charged on every simulated trade; you can change both.
- Same dates, same method. Benchmarks are measured over exactly the same period with the same adjusted prices.
- Misses are kept. The track record is append-only: a pick is stored before its outcome is known and is never removed.
- Known biases are named. Alpha Finder uses today’s index members, so history contains survivorship bias; pages that are affected say so.