On-chain volume measures the value of tokens moved or traded on a blockchain. A spike often signals something happened — but interpreting it takes more care than watching the number go up.
Volume up + price up: real buying pressure, usually. Volume up + price flat: heavy two-way trading — could be accumulation, could be a whale selling into buys. Volume up + price down: distribution or panic.
The distortions: wash trading inflates volume without real demand — a wallet trading with itself. Bot activity (arbitrage, MEV) adds volume that reflects no human conviction. And DEX volume misses everything happening on centralized exchanges — on-chain shows a slice, not the whole market.
Useful reading: sustained volume growth over days means more than one spike; volume relative to a token's normal baseline matters more than absolute size; and volume on rising price with rising holder count is a stronger signal than any single metric alone.
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