Glossary / Buying & exchanges
OTC desk
Also known as Over-the-counter desk.
- Definition
- An OTC desk quotes a single price for a large bitcoin trade and settles it privately, off the public order book, so the purchase never moves the visible market.
Desks exist because size is self-defeating on an exchange: a big order eats the offers above it and pays a worse average with every step. Coinbase Prime executed MicroStrategy's 425 million dollar bitcoin purchase in 2020 by slicing it into roughly 200,000 separate fills. If you are buying a few thousand dollars, none of this applies to you, which is itself useful to know.
How it works
An OTC trade is a negotiated quote rather than a queue position.
You tell the desk the size and direction. The desk responds with one all-in price, usually good for a few seconds, that already contains its margin. Accept, and the desk owns the position immediately; it then works the trade out across multiple venues and its own inventory at whatever pace avoids moving the market. Settlement is bilateral: wire in, coins out, or the reverse, typically same day, against a signed agreement and full identity and source-of-funds checks.
Two things are being sold here. The first is price certainty on size, since a quote is a quote and there is no partial fill or slippage after you accept. The second is discretion, because the order never appears in public depth data, so nobody front-runs it and no chart shows a spike at the moment you bought.
Desks are not exotic. Kraken runs one and lowered its minimum trade to 50,000 dollars in March 2025; Coinbase Prime, Binance, and most large venues operate equivalents, generally reachable from the same corporate account as the exchange.
Where you see it
Every large bitcoin position you read about in the news was probably built through a desk.
The clearest documented case is the corporate treasury trade. MicroStrategy disclosed in an SEC Form 8-K that on August 11, 2020 it had bought 21,454 bitcoin for an aggregate 250 million dollars, then added 175 million more in September. Coinbase later published the mechanics: pre-trade calls, a daily 9am check-in, and an execution split into about 200,000 fills averaging under 0.3 bitcoin each, with the stated aim of not disturbing the market. That is the opposite of pressing buy.
Spot bitcoin ETF issuers, mining companies converting block rewards into payroll, and estates liquidating an inheritance all use the same route for the same reason. A retail buyer does not: below roughly five figures your order is a rounding error in the book, the exchange's taker fee is lower than a desk's spread, and the desk minimum shuts you out anyway.
The one place the concept reaches ordinary buyers is the OTC-like quote embedded in consumer products. When an app shows you a single price to buy bitcoin instantly rather than an order book, it is selling you the same shape of product, at a much wider margin, without calling it that.
OTC desk vs order book
An OTC desk gives you one price for the entire size; an order book gives you many prices and no guarantee about the average. On the book, a large market order fills against each resting offer in turn, so the last coin costs more than the first, and the difference is your slippage. A desk absorbs that risk and charges for it inside the quoted spread. For small orders the book wins easily, because the spread on retail size is trivial and exchange fees are published. For institutional size the desk usually wins, and the saving is measured against the price impact the order would otherwise have caused.