Share prices are sourced from Twelve Data, Finnhub and Yahoo Finance, updated every 15 minutes. Market cap = shares outstanding (from Finnhub, refreshed daily) × current share price — only available for genuinely US-domiciled stocks, since ADR share counts and ADR trading prices don't share a 1:1 ratio for most of the international names we track, which would make the multiplication wrong (shown as "—" instead). Store tracking data comes from Apple's public App Store feeds and Valve's Steam Charts/Store APIs. Publisher/developer name matching is curated by hand against each company's actual store listings, not automated — see the full stock tracker for every company we follow, including ones not yet matched to store listings.