Multi-Coin Scanner
Runs one strategy across many coins with a walk-forward split: the in-sample segment is where an edge would have been discovered, the out-of-sample segment is scored blind. Results are ranked by OOS Sharpe and summarized by how many coins stay profitable — a formula that only works on one cherry-picked chart is noise. Note the coin list itself is today's survivors, so historical results carry survivorship bias.
Signals are computed once per coin over the full window and sliced at the split date; the OOS simulation starts flat with full warmup history, exactly like an account funded on that day.
Validate one crypto strategy across hundreds of coins
The Multi-Coin Scanner answers the question a single backtest cannot: does this edge generalize? It runs one strategy formula across an entire universe of coins using a walk-forward split — the in-sample segment is where an edge would have been discovered, the out-of-sample segment is scored blind. Results are ranked by out-of-sample Sharpe and summarized by how many coins stay profitable, so robustness beats cherry-picking.
How it works
- Enter a strategy formula or load a preset.
- Choose a universe: Majors (the most liquid coins) or all supported symbols.
- The scan runs locally in your browser on the WASM indicator engine — one walk-forward backtest per coin.
- Inspect the ranked table (by OOS Sharpe) and drill into any single coin's equity curve and trade list.
Strategy scan pages
Every preset strategy has its own multi-coin scan page: MA Cross 5/20 · MACD Cross · RSI 30/70 · Bollinger Breakout · KDJ Cross · Donchian 20/10.
Frequently asked questions
What is a walk-forward split in strategy testing?
Each coin's history is split into an in-sample segment, where an edge would have been discovered, and an out-of-sample segment that is scored blind. A formula only counts if it still works on data it was not tuned on.
Why does the scanner rank results by out-of-sample Sharpe?
Ranking by OOS Sharpe rewards strategies that generalize across coins and time periods instead of ones that fit one cherry-picked chart. The scan also summarizes how many coins stay profitable overall.
Which coins can I include in a scan?
A Majors preset of the most liquid coins or all supported symbols (700+). Note that today's coin list consists of market survivors, so historical results carry survivorship bias.
Where does the multi-coin scan computation run?
Entirely in your browser. The same WASM indicator engine used by the Indicator Lab and Strategy Backtester evaluates every coin locally — no uploads and no server queue.