Open Data
Alysly is data-driven — so the data behind the site isn’t hidden inside HTML text, it’s available as open JSON files. The same data we use to build charts, metrics and comparisons, you can download and analyse yourself.
| File | Contents |
|---|---|
/data/etfs.json | Master data for all 19 tracked ETFs: ISIN, WKN, ticker, TER, fund size, replication, distribution, reference index, domicile, SFDR. |
/data/stocks.json | Search index of all tracked stocks: name, ticker, sector, country, ISIN/WKN (where known), and which ETFs hold the stock with what weight. |
/data/instruments.json | List of all market instruments (indices, precious metals, commodities, currency pairs) with chart symbol. |
/data/crypto.json | All 229 tracked cryptocurrencies: price, performance (YTD/1M/3M/1Y), market-cap rank. Market-cap data: CoinGecko. |
/data/risk.json | Risk metrics per symbol from the full price history: maximum drawdown, annualised volatility, best/worst calendar year. |
/data/correlations.json | Cross-asset correlations per symbol: the 6 most-correlated and 3 most-inversely-correlated other instruments (Pearson r of daily returns, 90-day window) spanning stocks, ETF indices, crypto and commodities/FX. |
/data/corr_matrix.json | Full N×N correlation matrix (6 indices, precious metals/commodities/FX, stocks with a price chart, top-30 crypto by market cap) – powers the correlation matrix tool. |
/data/holdings/<ISIN>.json | Full holdings list of an ETF (not just top 10): name, ticker, weight, sector, country per position. One file per ETF ISIN, see the ETF list. |
/data/prices/<symbol>.json | Daily close prices per symbol. Symbol scheme: stk:<ticker> (stock), cx:<coin> (crypto), an index key (e.g. dax) or a futures code (e.g. gc.f for gold). |
Provenance & usage
Every file is generated on each trading day from the same database this website is built from — no separate, potentially stale copy. Raw data comes from Massive.com (US prices), iShares (ETF holdings), Binance and CoinGecko (crypto); using that raw data is subject to each provider's own terms. Our own derived computations (correlations, risk metrics, rankings, aggregations) are free to use with attribution to Alysly. All data provided as-is, not investment advice.