Undertow: Crypto Flows

Undertow measures what price charts do not show: how much of each crypto asset actually sits in exchange wallets, and what happens when that amount moves. We read balances directly from the blockchain every 10 minutes across six chains and eleven exchanges. Nothing is licensed from a third party — which is why we can show you exactly which addresses we track and where our data has gaps. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WE TELL YOU. YOU DON'T HUNT. Nobody opens an app to scan tables. Radar is a feed of measured anomalies: when an exchange reserve moves unusually, when whales cluster, when liquidations cascade — it arrives with the numbers already in it. Notifications have a daily cap and quiet hours. If you set a watchlist, only those assets reach you. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ WHAT YOU GET • Exchange reserves — 24h, 7d and 30d change for every tracked asset, ranked and z-scored against each asset's own history • Stablecoin Barometer — total stablecoins held on exchanges, the one on-chain metric with no interpretation ambiguity • Whale transfers — classified, with internal rotations and bridge movements filtered out • Derivatives — funding, open interest, basis and live liquidations • Premiums — cross-exchange spreads and stablecoin peg deviation • Token unlocks — with the share of circulating supply, not just the amount ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ MEASUREMENT, NOT PREDICTION Undertow never tells you what will happen. A rising exchange balance can mean coins arrived to be sold — or that an institution moved custody. We show the measurement and the context, and leave the call to you. There are no signals, no scores, no price targets. Every number is a historical measurement you can verify. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ PRIVACY BY SUBTRACTION No wallet connection. No location. No contacts, camera or microphone. No advertising ID — we don't even ask for tracking permission, because we do no tracking. No password: sign in with Google or Apple. Data not collected cannot leak. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ FREE AND PREMIUM Free: top 20 assets, 24h window, 60-minute delayed data, the Stablecoin Barometer, 5 watchlist slots, 3 alerts. No ads, ever. Premium: every asset, every time window, real-time data, full history, exchange-by-exchange breakdown, unlimited alerts and instant notifications. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ Undertow is an information and data visualisation tool. It does not provide investment advice or buy/sell recommendations. Crypto assets are high risk and you may lose the entire amount you invest.