Plain-English definitions for the terms used across the StockArithm site.
| Term | Meaning |
|---|---|
| Signal | One rule-based trading idea on the board. Each row is a separate signal with its own logic and results. |
| Force Rank | Full-window performance since the signal went live. This is the long-view score, not the recent hot streak score. |
| Rolling 30D | Performance over the last 30 days. Useful for recent momentum, but it can disagree with the full-window view. |
| SPY | The S&P 500 ETF used as the benchmark. Signals have to beat this to claim they are adding value. |
| Alpha vs SPY | How much a signal outperformed or underperformed SPY over the same window. |
| Paper-Traded | Simulated trading with real market data and public rules, but not real money. |
| Watchlist | A signal worth monitoring, but not yet trusted enough to feature. |
| Promoted | A signal strong enough to highlight publicly based on current evidence. |
| Graveyard | A signal that failed badly enough to keep visible as a dead end. |
| Alternative Data | Non-price inputs like TSA traffic, freight activity, electricity demand, search behavior, or other real-world proxies. |
| Visible Failure | A core StockArithm rule: losing signals stay on the board instead of being hidden. |
| Public Signal Count | The total public inventory on the site. This can be larger than the force-ranked population because some rows are still collecting history. |