Start with the question the order expresses
An order instruction describes a requested action under stated conditions. It is not an agreement that every unit can trade at the last displayed price. Separate three questions: which prices are acceptable, how much can fill, and how long the instruction may remain active.
This guide explains those concepts using invented values. It does not recommend an order type for your circumstances or describe a trading setup. Check the exact venue, pair and product before transferring any explanation into an actual interface.
A market label does not lock the reference price
Coinbase Advanced documentation describes market execution against available prices and notes that fills can occur at several prices. A market instruction should therefore not be read as a guarantee of the last quote.
Imagine an invented ask book offering 2 units at $100 and 3 at $101. If a five-unit purchase consumed exactly those levels, its notional would be $503 and its average price $100.60 before fees. That is a hypothetical illustration, not an observed spread or a measured fill.
| Price | Available units | Notional if consumed |
|---|---|---|
| $100 | 2 | $200 |
| $101 | 3 | $303 |
| Combined | 5 | $503; average $100.60 |
Evidence: Coinbase Advanced: order types
A price condition can leave quantity unfilled
For a hypothetical buy limit of $100 against that same invented book, only the two $100 units satisfy the price condition at that instant. The remaining three units are not assumed filled at $101. Later behavior depends on the instructions and venue rules.
A price condition concerns execution price, not whether the asset remains worth that amount afterward. Nor does a visible quantity guarantee that it will still be available when an order arrives. The general Investor.gov explanation is about stocks; use product documentation for actual crypto rules.
Evidence: Investor.gov: understanding order types
Order type and liquidity treatment are different
A limit order may execute immediately rather than rest. In Coinbase Advanced’s documented model, the immediately matched portion can receive taker treatment while a remaining resting portion can receive maker treatment. Avoid inferring fees from a label alone.
For a pure arithmetic exercise, $503 at an assumed 0.2% is $1.006, or about $1.01 when displayed to cents. That percentage is invented. It is not an account rate, a quote from either provider or a complete cost estimate.
Evidence: Coinbase Advanced fee documentation
Record the instructions you have not modeled
Read time-in-force, cancellation, partial-fill and post-only conditions in the exact product documentation. Do not assume an instruction exists or behaves identically across venues. This article does not reproduce account screens or verify regional availability.
The fee tool can compare percentage assumptions on a stated notional, but it does not place an order, inspect a live book or simulate queue position. Keep execution uncertainty separate from the simple fee arithmetic and do not describe an unfilled quantity as an executed trade.
Sources & method
- Coinbase Advanced: order types
Official crypto-product documentation, checked for order behavior and execution limitations. Features and region-specific eligibility require a separate check. Checked 2026-10-28.
- Investor.gov: understanding order types
General securities-market education. Used for conceptual distinctions only; stock-market rules are not presented as crypto exchange rules. Checked 2026-10-28.
- Coinbase Advanced fee documentation
Official product source, not an independently verified account quote. Private fees and eligibility were not accessed. Checked 2026-10-28.
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Found an error? Contact the editorial team with the page and supporting source. Never send private account information.