CorpStacking is a corporate crypto treasury tracker that monitors Bitcoin, Ethereum, and Solana holdings and transactions at public companies, governments, and exchange-traded funds. The platform provides real-time alerts whenever these entities buy or sell the tracked cryptocurrencies, with each data point traced back to its original source and audited daily to ensure accuracy. Users can access the service through a free tier that includes basic alerts and portfolio logging, or upgrade to Pro and Pro+ tiers for additional features such as wallet monitoring, more notification channels, and expanded data coverage. The service aggregates disclosures from SEC filings, major newswires like BusinessWire and GlobeNewswire, and on-chain wallet activity. It processes these inputs within minutes of publication, sending alerts through six possible channels: email, push notification, Telegram, Slack, Discord, and secure webhooks. Users can set size thresholds per company to filter out minor movements. The platform covers over 260 entities across Bitcoin, Ethereum, and Solana, including spot ETF flows and on-chain watch addresses. An AI analyst accepts plain English questions and returns answers with citations drawn from the live dataset, while a market terminal displays live prices for twelve tokens. Typical use cases include monitoring corporate treasury moves for investment research, tracking competitors or industry trends, and staying informed about large institutional positions. The workflow begins with selecting entities to watch and choosing notification preferences. Alerts arrive within ten minutes of a filing or transaction, and each purchase links back to its source document. A daily reconciliation check compares recorded moves against disclosed holdings, flagging discrepancies for review before they are verified. Users can create shareable watchlists published under a personal handle, and portfolio tracking allows logging holdings with cost basis, importing from platforms such as Strike, Coinbase, or Kraken, and exporting tax lot reports. Technical requirements are minimal for the free tier: a user account and an email address. Pro features require connecting a read only Bitcoin wallet, which auto syncs hourly without accepting private keys. Pro+ adds support for Ethereum and Solana wallets, CSV import and export, and unlimited alerts across all notification channels. The platform does not charge a credit card for the free tier and allows upgrades at any time.