After-tax value = current value − (unrealized gain × combined rate). This assumes every holding is sold today at your top bracket — a conservative estimate, not tax advice.
Data provider
Yahoo Finance doesn't allow direct browser requests (no CORS for arbitrary sites), so live pricing goes through a small proxy you control. Deploy the included yahoo-proxy-worker.js as a free Cloudflare Worker (~2 min, no cost) and paste its URL below — required for any live fetch to work; without it you'll get a toast instead of a silent retry.
Daily history is normally cached for 12 hours (so switching chart ranges doesn't re-download years of data every time) — this bypasses that cache and fetches fresh for every holding right now, if you want to watch the request happen or force in new data sooner.
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