About the platinum chart
This chart shows daily close prices for platinum in GBP per troy ounce. The 1M / 3M / 1Y / 5Y tabs switch the visible range. Hover (or tap on mobile) any point on the line to read off the exact date and price.
How it's built
Daily closes come from a Yahoo Finance backfill stored in this site's Cloudflare D1 database; a multi-provider feed (metals.dev, Swissquote, Yahoo Finance, gold-api) adds the latest spot through the day. No tracking, no third-party scripts — the chart is a hand-rolled SVG.