Market and Pending Execution Tradeoffs

Captain · CP02: Execution · About 25–30 minutes

Safety rule: Execution is part of risk. Never trade an unaffordable or unprotected ticket.

Your mission today

By the end you can choose a reproducible order type and distinguish eligibility, activation and actual fill.

Before you start

Use one frozen Captain strategy card from CP01 and a demo terminal. Have the real symbol specification available. Every example in this lesson is imaginary.

1. Understand the execution problem

A market order seeks available execution soon, but not a guaranteed price. A limit order restricts the entry price but may never fill. A stop entry activates after a price condition and may fill worse if price jumps. Choosing whichever type would have won in hindsight is not a strategy; it is rewriting the test.

A market order prioritises immediate execution but not a fixed fill price. A limit order constrains acceptable price but may not fill. A stop entry activates after a price condition but may suffer adverse slippage. The Captain must choose once, in the rulebook, not opportunistically after seeing price move.

Activation is distinct from execution. Order type changes how the system attempts a fill, not the uncertainty of the future market.

2. Worked example: loss before gain

Imagine a demo signal after an M15 close at 1.1000. A Buy market fills at Ask 1.1003 with a stop at 1.0983. Downside is 20 pips, or −$20 at $1/pip before costs. A Buy Limit at 1.0995 would have only 12 pips to the same stop if it fills, but it might not fill at all. A future move up cannot be counted as a win for an order that never executed.

Original Black Box Journey teaching illustration. Fictional executable prices and contract units.

3. Follow a repeatable sequence

1. State which order type the frozen strategy permits.
2. Record the live Bid/Ask and current session conditions.
3. For a pending order, state the triggering side and expiry.
4. Confirm actual broker acceptance and execution status.
5. Record both filled and unfilled eligible candidates in the ledger.

Carry out these steps before looking at the outcome. If an answer is missing, return WAIT or SKIP according to the written rule instead of guessing a fill.

4. Know when the plan breaks

A historical test must model no-fill outcomes and price gaps. A limit order often improves execution price at the cost of missing some moves. A stop entry may face slippage. Compare order types as separate variants on the same offered opportunities.

Unsafe alternative to reject: The novice claims the method earned 2R by using the candle close as entry even though no order could execute there. That is backtest fiction. Compare requested quote, actual fill, skipped entries and market states honestly.

5. Produce the practical record

The original flight exercise is: Simulate twenty candidate events: use one fixed entry policy, record missed fills, slippage and the effect on the full offer set.

Complete it under unseen conditions. Label requested price, actual fill, protective order status, costs, timestamp and any no-trade response. Two independent readers must reach the same decision with the same evidence.

6. Compare three order types without assuming a fill

Synthetic EURUSD order choices: Current Bid is 1.08500 and Ask is 1.08512. A market buy seeks an immediate execution near the available Ask but does not guarantee that exact price. A buy-limit order at 1.08480 may fill if an eligible Ask reaches the limit, or may remain untouched. A buy-stop entry at 1.08600 becomes eligible when its trigger condition is met; a price jump can create a worse fill depending on platform rules.

Imagine any accepted long fills at Ask 1.08610 and uses a Bid protective stop at 1.08510. The 10-pip planned downside equals −$10 at an invented $1 per pip before costs. A later executable Bid at 1.08710 would make +$10 in another hypothetical outcome. Neither a pending-order label nor a chart touch guarantees an entry or exit.

Execution drill: Write the four fields that differ across market, buy-limit and buy-stop orders: trigger price, execution condition, possible missed fill and cancellation rule. Test each type on demo only. Save the order request, actual fill or rejection and platform reason. A rejected order is an outcome to document, not a disappearing mistake.

Common mistake

Confusing a drawn chart line or submitted request with a broker-confirmed order. The remedy is to inspect actual server history and recalculate the downside at the executable price.

Plain-English glossary

• Market order: Request for execution at available quotes.
• Limit order: Instruction constrained by a price boundary.
• Stop entry: Instruction activated at a defined price condition.
• Fill rate: Share of eligible orders that actually execute.

Try it yourself

Simulate twenty candidate events: use one fixed entry policy, record missed fills, slippage and the effect on the full offer set. Record at least one deliberate rejection and one scenario where execution is worse than requested. Save the ticket, quote, stop-distance maths and final account record.

What you can now do

• Choose a reproducible order type and distinguish eligibility, activation and actual fill.
• Explain how a worse fill changes the cash loss.
• Reconcile your planned ticket against executed server evidence.

Next lesson

CP02.3 · Structural Stops and Risk-Correct Volume.