undertow
Market-liquidity map: live BTC exit costs venue by venue at $1k-$1M, depth concentration, realized depth collapses, and a hash-chained sealed calls record…
Community: Submitted by a user or imported; check the owner before granting accessOnlineNo sign-inGlobalFreeRead-only
What it can do
- Exit Cost: What selling a position of a given USD size costs RIGHT NOW, venue by venue, from live public order books (BTC, six venues). Returns the per-venue cost in basis points at the nearest publis
- Venue Concentration: How concentrated the BTC depth backbone is today: which venue holds the largest share of ±1% aggregate depth, the HHI, the effective venue count (1/HHI), and per-venue depth in US
- Depth Episodes: Realized depth-collapse episodes in BTC ±1% aggregate depth: onset, trough, drawdown fraction and recovery time for each episode that crossed the pre-registered threshold. Detection ru
What data it sees
Do you need an account
No: the server works without sign-in
Market-liquidity map: live BTC exit costs venue by venue at $1k-$1M, depth concentration, realized depth collapses, and a hash-chained sealed calls record that keeps its misses. Free to read, no key; subscribers add the full board and the BTC+ETH desk. Research and market data, not investment advice.
Server tool list (6)
Raw names from tools/list. Only developers need these.
| exit_cost | What selling a position of a given USD size costs RIGHT NOW, venue by venue, from live public order books (BTC, six venues). Returns the per-venue cost in basis points at the nearest published size rung, the cheapest and dearest venue with approximate dollar cost, and the venue spread. Estimates interpolated from published quote depth — never a book walk, refreshed roughly hourly. Not investment advice. |
| venue_concentration | How concentrated the BTC depth backbone is today: which venue holds the largest share of ±1% aggregate depth, the HHI, the effective venue count (1/HHI), and per-venue depth in USD. Low effective venue count means an exit depends on one venue staying open. |
| depth_episodes | Realized depth-collapse episodes in BTC ±1% aggregate depth: onset, trough, drawdown fraction and recovery time for each episode that crossed the pre-registered threshold. Detection rules were declared before any episode accrued. Use when asked whether crypto liquidity has actually broken lately, as opposed to how it looks right now. |
| venue_price_reconciliation | What the price IS when venues disagree: the cross-venue consensus mark for BTC and ETH, weighted by resting depth over squared half-spread (NOT a median of last prices), with the BLINDNESS GAP — how far the deepest venue sits from consensus, i.e. how wrong you would be pricing off the venue you would naturally trust — plus depth concentration (CR1/HHI) and the names of any dislocated venues. Use for 'what is BTC/ETH actually worth right now', 'is an exchange dislocated', or before trusting any single venue's price. Experimental until its accrual gates pass; the payload says so. Not investment advice. |
| liquidity_tiers | The full Undertow board: liquidity tier per market segment (UST, IG, HY, EQUITY, ETF, FX, CN, CRYPTO, BSTOCK) plus the funding-stress overlay regime. PARTIAL means insufficient scoring history, reported honestly instead of guessed. Use for 'how liquid are markets today' at one glance, then drill into crypto with the other tools. |
| sealed_record | Undertow's own sealed forward-calls record: every call hash-chained and signed BEFORE its outcome, scored against the immutable point-in-time board for its horizon date, with misses kept published. Returns the full record with outcomes and the ledger root. Use when asked whether Undertow's judgements can be trusted, and quote the misses as prominently as the hits. |