StockArithm runs sector ETF signals in public so you can see what's actually working — not what backtested well.
If you want sector ideas without building a model from scratch, this is the public proof board. StockArithm tests tradable signals in public and keeps the weak ones visible.
Each signal is a rule-based idea trying to give you an earlier read on a sector move than SPY alone. Some use standard momentum logic. Others use alternative data like TSA traffic, freight activity, electricity demand, and search behavior.
The board shows which signals are actually holding up in public paper trading, not just which ones looked clever in a backtest.
Need the terms in plain English? Start with the glossary.
StockArithm takes two broad kinds of signal ideas - traditional ETF rotation and alternative-data inputs - and runs them through the same public test.
Traditional signals use familiar market logic like momentum, relative strength, and rotation. Alternative-data signals use real-world inputs like TSA traffic, freight movement, electricity demand, and search behavior to see whether those inputs improve the odds enough to matter.
Each signal is paper-traded, ranked against SPY, and kept visible whether it wins or loses. The point is not the prettiest backtest. The point is to show which signals are actually surviving in public, under the same scoreboard, with the losers still on the page.
Most trading signals look good until they have to survive in public. StockArithm exists to show that survival test in real time so you can decide what is worth your money.
If TSA volume spikes, the lab can turn that into a travel or consumer signal, run it against SPY, and show whether it actually helps you get ahead of the move.
Recent leaders over the last 30 days.
View the leaderboardPublic counts update nightly. Right now the lab shows 892 total algos, 379 on the watchlist, 0 promoted, and 41 in the graveyard.
Watchlist means worth monitoring but not yet trusted. Promoted means strong enough to feature publicly. Graveyard means the idea failed badly enough that we keep it visible as a dead end.
Read the daily snapshotAll 892 signals in one public list. Names, families, and status only. No rank and no returns.
A lot of the lab is still collecting data, waiting on better history, or sitting in sandbox until the first real trade fires. Families show what each cluster is trying to measure.
A short weekly note on which signals are holding up, which are breaking, and what the lab learned.
Every day we showcase three signals from our lab: two rotating daily picks and one permanent resident. No cherry-picking, no backtested fantasies.
Spotlight 1 & 2 update daily at 6:30pm EST. Never cherry-picked: rotation is deterministic with 14-day anti-repeat.
The information provided by this website, its tools, and any associated content is for informational and educational purposes only. Nothing here is financial, investment, legal, or tax advice.
This service publishes experimental signals, research outputs, and historical observations. These are not recommendations to buy, sell, or hold any asset.
Trading and investing involve significant risk, including possible loss of principal. Past performance does not guarantee future results. Signals, models, results, and third-party data may be incomplete, incorrect, delayed, or revised.
You are solely responsible for your own financial decisions. Do your own research and consult a qualified professional before making investment decisions.
By using this service, you agree that the operators are not liable for losses, damages, or decisions made based on the information provided.