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JumpstartSignal: Open‑Source ESG Stock Screener With Proven Alpha

Hacker News •
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JumpstartSignal (JSS) offers a free, ESG‑filtered daily screener built after the author’s missteps in quantum‑tech betting. The system publishes its methodology, daily watchlists, and transparent case studies, giving users a clear view of how signals drive picks.

The 5‑stage pipeline evaluates 54 individual signals and 1,836 combinations, validated walk‑forward across 25 hold periods. A genetic algorithm assigns weights while safeguarding alpha across market regimes, trimming backtest‑only winners from 2018‑2021.

Backtests from 2012‑2025 show the SPOTLIGHT + OPPORTUNITY tiers produced +163% alpha versus SPY, with case studies on NVDA, SEDG, and Tesla illustrating both wins and missed opportunities. Daily emails deliver the watchlist, and all results are public without signup.

JSS demonstrates that systematic, ESG‑aligned screening can outperform the benchmark while keeping the process fully auditable.