How to read it
Long liquidations are forced sells, short liquidations forced buys, so a burst can push price further the same way. It shows where leverage was flushed, context for the next test of that level, not where ETH goes next. On 5m the chart labels bars with $250k or more, and longer bars need more.
Where it comes from
Each venue's public liquidation stream, read live in your browser. CEX 1 and CEX 2 send at most one liquidation a second, so totals are a floor.
Paid plans also see recorded liquidations of $10k and more on 1h and 4h charts, from the day Markov began recording. A stretch the collector missed is marked "not recorded", never filled in.
Glossary: liquidation, liquidation heatmap. See the data sources. Research tools and education, not financial advice.