Take a trader working EURUSD with a five pip target and a five pip stop. On paper that is a one to one setup, and if the entries are better than a coin flip it should grind out a profit. Now add a one pip spread and a commission that costs roughly another 0.6 pip on the round turn. The real target is 5, the real cost is 1.6, and the win now pays 3.4 while the loss takes 6.6. The chart did not change. The arithmetic did.
That is the whole subject in one paragraph. Everything a scalper does afterwards is an attempt to keep that cost ratio survivable.
Cost is the strategy, not an afterthought
On a swing trade with a 120 pip target, a 1.6 pip round turn is noise, about 1.3 percent of the move. On a five pip scalp it is 32 percent. The shorter the hold, the larger the share of your edge that goes to the broker before price has done anything at all.
Which is why scalpers obsess over account type. A raw spread account with commission usually beats a wider all-in spread once you add both sides, but you have to actually add them, per lot, per round turn, and compare like for like. Our breakdown of the bid ask spread covers how the quoted number is built, and the same logic decides whether your strategy is viable at all.
The other half of the bill is what you do not see in the terms sheet. Slippage on entry and exit adds a fraction of a pip most of the time and considerably more during a fast minute. Spread behaviour matters as much as spread level: a pair that shows 0.4 pip at 14:00 London and 3 pip at the 22:00 rollover is two different instruments to a scalper, which is why rollover widening is a hard boundary on the trading day rather than a curiosity.
Which instruments and hours actually work
Scalping needs two things at the same time: tight spread and enough movement per minute to reach a small target quickly. Those two peak together in a narrow window. For the major FX pairs that is the London morning and the London to New York overlap; outside it, spread stays acceptable but the range collapses and trades sit for twenty minutes going nowhere. Our notes on the forex trading sessions map when each market is genuinely liquid.
Instruments with a naturally wider spread, exotic pairs above all, are usually out. Gold and the major index CFDs work for some traders because the point value is large enough to make a small move worth taking, but their spread also widens hard around economic releases, and the intraday range varies enormously from one week to the next.
Scalping does not lower risk because the trades are short. Position sizes tend to be larger to make a few pips meaningful, so the money at stake per trade is often higher than in slower styles. Leveraged trading carries a high risk of loss, and a run of small losses at scalping frequency compounds fast.
Execution is part of the strategy
At this timeframe, the gap between clicking and being filled is a real cost line. A platform that takes an extra half second to acknowledge, an order ticket that needs three confirmations, or a chart that redraws when you drag a stop will each cost you pips over a week. Traders who scalp seriously use one-click order entry from the chart itself, keep the stop and target attached at entry, and never type a lot size mid-trade. This is one of the reasons brokers building for active clients care about how orders are placed on the chart; it is a core part of what we built into eTrader.
Distance to the server matters too, though less than the marketing suggests. Fifty milliseconds of latency is meaningless if you are holding for three minutes and your target is eight pips. It becomes material only when you are trying to take a fill in the first seconds of a release, which is a different and much harsher game.
The part nobody advertises
Scalping produces decisions at a rate the human brain does not enjoy. Fifteen trades in a session means fifteen entries, fifteen exits, and roughly fifty moments where you consider doing something and do not. Concentration degrades. By trade eleven, the setup quality standard has quietly dropped, which is the mechanism behind most blown scalping days rather than any single bad trade.
The two failure patterns to watch are familiar. The first is overtrading: taking the next trade because the screen is open, not because the condition appeared. The second is refusing a small loss, moving the stop by two pips "to give it room", and turning a scalp into an accidental swing position with scalp position sizing. That single habit accounts for more damage than any structural flaw in a strategy.
How to tell whether it suits you
Before committing, run the numbers on your own broker statement rather than on a vendor's example. Take fifty of your own trades, add the real spread paid at entry, the commission both ways, and the average slippage, then see what is left of the average winner. If cost is eating more than a fifth of your target, the strategy needs a bigger target or a cheaper account, and no amount of screen time fixes it.
Compare that honestly against the slower options in day trading versus swing trading. Plenty of traders who believe they need speed are actually choosing scalping because it produces activity, and activity feels like progress. For most people with a job and a family, a style that produces two decisions a day is a better fit than one that produces forty.
"Before you scalp anything, work out what one round turn costs you in pips. If that number is more than a fifth of your target, you are not trading a strategy, you are funding one."
— Alex Onta, Executive Director, SINGUARD
Key Takeaways
- On a five pip target, a 1.6 pip round turn takes about a third of the move before price does anything.
- Tight spread and real movement overlap only in a narrow part of the day, mainly the London and New York hours.
- Order entry design and attached stops matter at this timeframe; friction in the ticket is a measurable cost.
- Widening a stop on a scalp turns a small planned loss into an unplanned position at scalping size.
Frequently Asked Questions
How small is a scalp target?
There is no official threshold, but most scalpers work with targets measured in a handful of pips or a few index points, held for seconds to a few minutes. The defining feature is that transaction cost is a large share of the target rather than a rounding error.
Do brokers allow scalping?
Most do, but the account terms decide. Some agreements restrict very short holding times, latency arbitrage or news-spike entries, and prop firm rules often set a minimum holding period. Read the specific clause before building a strategy around trades that last twenty seconds.
Is a raw spread account always better for scalping?
Not automatically. A raw spread plus commission can beat a wider all-in spread, but you have to add both sides and compare the total per round turn. Execution quality, slippage and how the spread behaves during volatile minutes matter as much as the headline number.