What it is
A material nominal decrease in a protocol's reported locked value over a day or a week.
Why it matters
A decrease can reflect withdrawals, falling token prices, source mapping, or a combination. It is a warning to inspect the cause, not proof that users exited.
How we read it
Same engine as the tide, inverted: ranked by nominal USD decrease. We pair it with the protocol's category and home chain, and never call it a withdrawal without a deposit-flow source.
What it cannot tell you
A drain driven by a falling token price is not the same as users withdrawing. We flag the move; you read the cause.