etfdata in WebAssembly (WASM) • etfdata

This vignette demonstrates the etfdata package running entirely in your browser using WebR. See docs/wiki/ETF_Data_Sources.md for details on cached data and CORS.

Data Analysis Example

We retrieve the ETF universe included in the package and use the cached snapshot generated during CI. The snapshot uses the curated universe list and incremental price downloads (only missing dates are fetched). If no snapshot is available, we fall back to a single live attempt per ticker with a short timeout.

JustETF Screener

Query the JustETF screener data. In the browser, we rely on the cached snapshot produced during the build.

Session Info

sessionInfo()