How Many Pips Until Stop-Out on an Oversized Position?

[Fairman]

How Many Pips Until Stop-Out on an Oversized Position?

Scenario: a trader with a 5,000-dollar account buys one full standard lot of EUR/USD at 1.1000 with no stop, using 1 to 30 leverage. The broker's margin call is at 100 percent and stop-out at 50 percent.

Work it out. Required margin: 110,000 divided by 30, about 3,667 dollars. The starting margin level is 5,000 divided by 3,667, which is 136 percent.

Margin call at 100 percent means equity of 3,667 dollars, a loss of 1,333 dollars. At 10 dollars per pip, that is about 133 pips. Stop-out at 50 percent means equity of 1,833 dollars, a loss of 3,167 dollars, about 317 pips.

Now compare with ordinary market behavior. EUR/USD can move 133 pips in a couple of days. It moves 317 pips over a few weeks in trending periods. So this trader could be forced out of the trade by a normal market move.

What would a sensible trader have done? Risking 1 percent, or 50 dollars, with a 25-pip stop, the lot size would be 0.20. At that size, 25 pips costs 50 dollars, and the margin used would be about 733 dollars, a margin level of 682 percent.

Takeaway: the same account, the same trade idea, and a completely different survival profile. Position size is the variable that matters.

Practical step: compute how many pips of adverse movement would trigger a margin call on your largest typical position.