Portfolio Fragility Lab · PFL v0.1
What is concentrated in your portfolio?
Review your weights, understand the first insight, then explore historical behaviour and your own stress assumptions.
1. Enter your holdings
One holding per line: SPY 60. Separate the identifier and weight with a space, tab or semicolon. Commas are decimal marks only. Grouping separators are unsupported.
Portfolio text, files and results stay in this tab's memory. No account, upload, portfolio telemetry or persistent storage. Reloading or leaving the page ends this session.