Scalping vs Trend Following
Scalping is a holding period of seconds to minutes with a small fixed target. Trend following is an exit rule that keeps a position open while the move continues, so it requires the room that a scalping timeframe is specifically designed not to give.
Almost every pair of ideas on this site can be combined. This one cannot, and the incompatibility is arithmetic rather than a matter of taste: one approach requires the position to survive noise and the other exists to trade the noise.
What each one is
Scalping is a holding period of seconds to minutes with a small target, taken repeatedly. Scalping covers it.
Trend following is an exit rule: hold while the move continues, leave on a trailing stop, and accept that the end of every trend is given back. Trend following covers it, and position trading covers the holding period it normally requires.
One caps the winner and the other refuses to. Whereas a scalp’s entire design is a defined small target, trend following’s arithmetic depends on a few large winners paying for many small losses — and you cannot have both properties at once.
Where they differ
How much room the exit needs. A trailing stop set close to price is hit by ordinary noise, while one set several average true ranges away survives far longer and gives back more when it finally goes. A scalper’s tolerable stop is at the tight end of that range, which produces a holding period of only a few bars — too short for any trend to develop. Testing distances of one to four average true ranges on your own instrument shows how steeply survival rises with width.
Where the profit comes from. A scalper’s return is the sum of many small captures and depends on a high hit rate. A trend follower’s return is dominated by a handful of outliers and the hit rate is usually poor, which is a different distribution rather than a different amount.
What noise means. On short timeframes price turns every few bars and seldom runs far in one direction. A scalper is trading those runs; a trend follower needs to sit through them, so the same market feature is the opportunity for one and the obstacle for the other.
What costs do. Say a round trip costs 0.01: against a 0.25 scalp target that is 4%, and against a 5.00 trend-following target it is 0.2%, a rounding error — so frequency is affordable for one and not the other.
Where they agree
Neither supplies an entry. One is a duration and the other is an exit rule, so both still need a reason to be in the trade.
Both are ruined by ranges, though differently: the trend follower is stopped out repeatedly and the scalper is fine until costs accumulate.
Both require position sizing from outside the method.
And both live through drawdown. The S&P 500 went 7.5 years without a new record close after its January 1973 peak, not reaching one until July 1980. A trend follower sits through stretches like that by design, and a scalper feels them as long runs of small losses.
Which one to use: Scalping or Trend Following?
Use a trend-following exit when you can give the position several average true ranges of room. Tight trails are reached by ordinary movement within a few bars, and below about two ranges the holding period becomes too short for the method to be what it claims to be.
Use scalping when your costs are low, you can be present, and you want fast feedback. Fixed targets are the right exit for that holding period, and trying to let a scalp run converts it into an undercapitalized position trade.
Use a fixed target on any short timeframe. The trailing exit needs room that a short holding period cannot supply, and the room-versus-duration trade above is the whole argument.
And when you want to hold winners longer, change the timeframe rather than the exit rule. Those are the same decision approached from opposite ends, and only one of them is coherent.
Why the incompatibility is measurable
Because the trail distance and the holding period are the same variable. Choosing a tight stop is choosing a short hold, whether or not you intended to — a trail one average true range away is reached by ordinary noise within a few bars. There is no configuration in which a scalper’s stop produces a trend follower’s duration.
And because average true range moves. It expands when the market gets busy and contracts when it is quiet, so a trail set in those units widens exactly when the market gets busy — helpful for a trend follower and intolerable inside a scalp. Say the measure rises from 0.60 to 0.80: a 3-unit trail widens from 1.80 to 2.40.
The original data
Scalping appears in 709 titles at a median of 23,380 views, the work of 353 channels. Trend following appears in 132, at a median of 3,608 across 103.
Six times the videos and six times the audience on the shorter style. Trend following is one of the best-documented effects in the academic literature and one of the least-watched subjects here, which says more about what people want to be told than about what works.
Whether to hold past the scalp target has to be decided before entry. Choosing afterwards, with profit on screen, is how a scalp becomes an accidental position with a scalper’s stop attached.
When it fails
The characteristic failure is letting a scalp run without widening the stop. The target is hit, the move looks strong, and the position is held — but the stop is still where a scalper put it, roughly one average true range away, a distance that the ordinary back-and-forth of price tends to reach within only a few bars. The trade is now expected to capture a trend using an exit that will end it almost immediately, so the outcome is an ordinary scalp with the profit given back, repeated until it is written off as bad luck. The intention changed and the arithmetic did not.
A second failure is running a trend-following exit on a short timeframe deliberately, which produces a high frequency of stopped-out trades each paying a round trip.
A third is tightening the trail after a large give-back, which halves the median holding period and changes the method while keeping its name.
A fourth is scalping at retail costs, where 4% of every target goes to friction.
And a fifth is judging trend following on a sample with no large winner in it, which removes the only source of its return.
Related
Scalping covers the shortest holding period. Trend following covers the trailing exit rule. And position trading covers the holding period that rule actually needs.
Most pairings on this site combine. This one does not, and the reason is measurable rather than aesthetic — the stop distance a scalper can tolerate produces a median holding time of three bars, and no trend-following arithmetic works over three bars.
— Michael Whitman
This page is educational, not financial advice. Test every idea on your own charts before risking money.