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Whale Detector — the size-tracking agent

MidasFlow agent hub · Updated June 11, 2026

The Whale Detector watches for size: outsized prints on the tape, large walls being built or pulled in the order book, and absorption — when heavy selling hits a level and price refuses to fall. Its output answers one question for the consolidated report: is someone big active here, and on which side?

How whale-watching works

Large participants leave three classes of footprints. Walls — visible limit-order blocks that either defend a level or intimidate (spoofing). Absorption — market orders hammering a level that does not move, meaning passive size is eating them. Outsized prints — single trades far above the symbol's typical size, often the visible edge of an iceberg. None of these is conclusive alone; sequences of them are.

How it is implemented in MidasFlow

Input: order-book snapshots and the trade tape of the analyzed pair, plus large wallet-movement signals. Output: a whale-activity note — walls and their behavior, absorption zones, notable prints — feeding the report's context block. Shrinking sell walls during quiet buying is one of the accumulation tells described in the accumulation guide; the agents cross-confirm.

The homepage card shows 80% — a backtest estimate, not audited live results.

TODO (owner): add one anonymized whale-activity line from a real bot report.

Limitations

• Spoofing — book intimidation is cheap; the agent discounts vanishing walls, but sophisticated spoofers exist.
• Exchange flows ≠ intentions: a whale moving coins to an exchange may sell, market-make or collateralize.
• On thin books, one mid-size player looks like a whale; tier context matters (see liquidity tiers).

FAQ

What exactly is a whale wall?

An unusually large limit order sitting in the book. A defended wall absorbs market orders and holds the level; a spoofed wall vanishes the moment price approaches. Watching what the wall does under fire matters more than its size.

What is spoofing and how do you handle it?

Spoofing is placing large orders with no intention to fill — pure intimidation. The agent discounts walls that repeatedly appear and vanish without absorbing volume, and upgrades walls that actually eat market orders.

Can whales really be tracked reliably?

Partially. Exchange microstructure (walls, absorption, outsized prints) is observable in real time; intentions are not. Treat whale activity as context that strengthens or weakens other signals, not as a standalone oracle.

Do whale alerts predict pumps?

Sometimes they precede them — quiet accumulation is one of the earliest tells (see the accumulation guide). But size also shows up to distribute into strength. Direction comes from the full consensus, not from size alone.

How does this relate to accumulation detection?

Accumulation detection watches slow stealth buying over time; the Whale Detector watches discrete size events right now. They frequently confirm each other — that overlap is exactly what the multi-agent consensus rewards.

Run a free analysis — whale context included