Last Updated: 2026-10-26
Start with a paper order you can explain, not a return target or a countdown to using leverage. This guide covers spot-order mechanics, costs and a review log. Its numbers are invented and no order is submitted. Understanding the examples does not establish that trading is suitable or profitable for you.
Check access and the product before the interface
Identify the legal entity serving your location, the product you would use, eligibility requirements and current account terms. A platform being available in a browser does not establish permission to use all of its products. Do not circumvent restrictions or misstate payment purposes. Record the supported asset/network, minimum order, quantity increment, fee schedule and withdrawal conditions from the current provider documents.
Spot ownership, a derivative contract and a borrowed position are different exposures. “Long” describes exposure that benefits from a price rise; it does not itself mean leveraged. This walkthrough uses unborrowed spot units. It does not teach opening a leveraged account or endorse an exchange.
Read the order book in units
The bid is a displayed buying price; the ask is a displayed selling price. An order is an instruction, a fill is an executed part of it, and a position is what remains after fills. The spread is the difference between the best bid and ask. The last trade is not a promise about your next fill.
Consider a frozen, fictional sell book:
Scroll sideways to see every column. Keyboard: focus the table region and use the arrow keys.
| Ask price | Available units |
|---|---|
| $100 | 0.8 |
| $101 | 1.2 |
In this toy book, buying 1.5 units immediately consumes 0.8 at $100 and 0.7 at $101. Cost before fees is $150.70, an average of about $100.4667 per unit. At an illustrative fee of 0.1% of filled value, the fee is $0.1507. Real quotes can change, and a venue may reject, limit or partially fill an order.
A buy limit at $100 instead permits no price above $100: only 0.8 units are available at that price in this frozen example. Depending on the time-in-force instruction, the remaining 0.7 may rest or be cancelled. A limit that crosses available asks can take liquidity; “limit” does not automatically mean a maker fee. Check post-only and expiry behavior separately.
The official Coinbase order-type documentation, checked 26 October 2026, illustrates market, limit and stop-limit behavior and distinguishes post-only from orders that can take liquidity. It is a venue-specific reference, not a guarantee that every platform implements the same triggers or protections.
A stop is a condition, not a maximum loss certificate
A stop-limit can trigger a limit instruction that never fills if the market moves beyond its price. A stop that becomes a market order prioritizes execution but does not guarantee the trigger price. Check which price triggers it, where it is held and what happens during outages or partial fills. A client-side alert is not an exchange-held exit order.
Here is a synthetic planned-loss calculation, including fees. Suppose entry is $100, the assumed exit is $95, and both fills incur a hypothetical 0.1% fee. For one unit, the planned loss is $5 + $0.10 + $0.095 = $5.195. A hypothetical $10 planned-loss budget would imply at most about 1.9249 units under those assumptions, before quantity rounding and other costs.
Take 1.8 units for the example:
Scroll sideways to see every column. Keyboard: focus the table region and use the arrow keys.
| Cash movement | Calculation | Amount |
|---|---|---|
| Entry including fee | 1.8 × 100 × 1.001 | $180.18 paid |
| Exit at the assumed $95, after fee | 1.8 × 95 × 0.999 | $170.829 received |
| Planned loss | 180.18 − 170.829 | $9.351 |
| Exit instead at $90, after fee | 1.8 × 90 × 0.999 | $161.838 received |
| Loss in that gap scenario | 180.18 − 161.838 | $18.342 |
The gap scenario exceeds the supposed $10 budget. If the asset becomes worthless, the entry outlay can be lost; custody and other risks are not bounded by the stop calculation either. These prices and fees are teaching inputs, not current quotes or recommended parameters. Actual sizing also depends on increments, minimums, available capital and all relevant costs.
A win rate needs payoffs
In a made-up sample, 55 wins of $10 and 45 losses of $15 produce $550 − $675 = −$125 before costs. More winning trades did not make the result profitable. Keep completed and still-open positions separate, include fees, and avoid deleting losing trials after changing a rule.
Drawdown recovery also has a different denominator. A 20% fall takes $100 to $80; returning to $100 requires 25% growth from $80. A 50% fall needs 100% growth to recover. Neither calculation predicts recovery, and increasing risk does not repair the arithmetic.
A practice record that can fail
For every simulated order, save the timestamp and time zone, pair, units, bid/ask snapshot, order instruction, assumed fills, fees, remaining quantity, reason and invalidation condition. Mark assumptions about queue position or liquidity; paper fills do not establish executable live results.
Try a partial fill, a rejected order, an expired price, a stop-limit that remains unfilled and a disconnected data feed. Explain the resulting position and outstanding orders before continuing. If you cannot reconcile them, the exercise is unfinished. There is no universal number of days after which a profitable simulation becomes proof of readiness for real capital or leverage.
Keep original exports and acquisition records separately from a trading diary. The record-reconciliation guide explains that distinction without assigning your tax treatment. This page teaches reading an order and checking a calculation; it does not promise income, recommend a venue or claim a personal trading record.
Educational paper examples only. Trading can lose capital. AITR may receive commissions on commercial links elsewhere; the documentation link above is a direct reference.