The stop level and the fill have different jobs

A stop level tells the broker when the exit condition has been met. The execution price tells you where the order actually traded. During fast moves or a gap, the market may not offer enough liquidity at the exact stop level. OANDA's explanation of execution risk covers the roles of gaps, available liquidity and delays.

This is why a chart touching a line and an account closing at that exact price are not the same event. A signal provider's published level and a broker's execution record also describe different stages of a trade.

A EURUSD example with three pips of slippage

Illustrative arithmetic—not a real trade. Assume a USD account, a 10,000-EUR position and EURUSD quoted with a pip size of 0.0001. An entry at 1.1000 with a stop at 1.0980 has a planned distance of 20 pips.

MeasurementResult before other costs
Pip value10,000 × 0.0001 = $1
Planned price loss at 1.098020 pips × $1 = $20
Actual fill at 1.097723 pips × $1 = $23
Additional loss from the fill difference3 pips × $1 = $3

The actual price loss is 15% larger than the planned $20. That does not mean the account lost 15%: the account balance is not specified. Commissions, financing and any other applicable charges are outside this simplified price calculation.

Why the candle may not show the whole explanation

A chart and an order record may use different price views. An execution investigation needs the broker's order type, trigger rules, timestamp and actual fill—not just a screenshot of a candle. Ask whether the chart displays bid, ask or another reference, and whether the displayed data covers the time of execution.

These are fields to compare when explaining an individual fill, not a reason to assume every difference is slippage. A spread, commission and delayed signal delivery are separate concepts. Combining all three under one label makes it harder to identify what actually changed the result.

A stop manages an exit condition; it does not fix the maximum bill

Ordinary stop execution can differ from the requested level. Some brokers offer separately specified guaranteed-stop products, but their availability, fees and conditions belong to that broker's contract; they are not a property of every forex stop.

The practical distinction is between planned exposure and realised execution. Our pip calculator helps with the first. A broker's execution record supplies the second. The forex app page explains signal delivery, which should not be confused with execution or a guaranteed fill.