Position Trading vs Momentum Trading
Position trading is a holding period of months to years and supplies no reason to enter. Momentum trading is that reason: buy what is already moving, on the claim that recent strength continues — and the longer the lookback used to define strength, the more selective the signal.
One of these is a schedule and the other is a reason to act. They combine well, and the published momentum research points the same way: it has generally defined strength over months rather than days, which is a position trader’s horizon.
What each one is
Position trading is a holding period of months to years. It constrains when you reassess and nothing else. Position trading covers it.
Momentum trading is an edge: buy what is already moving, on the claim that strength persists. Momentum trading covers it, and trend following covers the exit rule usually paired with it.
One supplies time and the other supplies selection. Whereas the holding period tells you nothing about what to buy, momentum ranks candidates by recent strength and takes the top — a complete and testable instruction.
Where they differ
Whether it selects. A holding period does not. Momentum produces a ranked list, which is the half that determines what your account actually holds.
Whether it says when to leave. Neither does. The holding period is a horizon rather than an exit and momentum is an entry rather than an exit, so a trailing rule has to come from somewhere else — which is why momentum and trend following are so often run together.
What the evidence looks like at each lookback. A twenty-day high is cleared by fairly ordinary movement, while a fifty-five-day high takes a move that has already outlasted weeks of back-and-forth. The charts on this page are drawn to illustrate that difference rather than measured from a market, so it is a comparison to test on your own instrument. Count how often breakouts at each lookback kept going, and see whether the longer definition of strength turns out to be the more selective one.
What each costs. The holding period’s cost is the annual drag: over thirty years, 75 basis points removes 20.2% of the final pot. Momentum’s cost is being wrong at the entry, which is bounded by wherever the stop sits behind the breakout.
Where they agree
Both need a market capable of sustaining a move. In a range the holding period produces nothing and every breakout fails.
Both are indifferent to the round trip when targets are measured in many bar ranges, since a fixed cost shrinks to a sliver of a move that large.
Both require an exit rule from elsewhere. Neither supplies one.
And both live through drawdown. Even the broad index spends most of its life under water — below its prior record close on 93% of trading days since 1950 — and its worst fall, 56.8% from October 2007 to March 2009, took until March 2013 to recover.
Which one to use: Position Trading or Momentum Trading?
Use them together, with a long lookback for the entry. A fifty-five-bar high demands more of a move than a twenty-bar one, which filters out many of the moves that were never going anywhere.
Use a trailing exit rather than a target. Momentum’s return comes from the occasional move that keeps going, and a fixed target removes precisely the trades that pay for the rest.
Use the position-trading horizon because of your circumstances, not because of the edge — that decision is about your capital and your attention, and it is compatible with any entry rule.
And when the instrument does not trend, use neither. The pairing has no mechanism at all in a range, and no amount of lookback tuning creates one.
Why longer lookbacks are more selective
Because a longer window is a higher bar. Exceeding fifty-five bars of prior range requires a move that has already outlasted the noise, whereas a twenty-bar high is reached routinely — ordinary swings a few bars long keep poking through recent highs, so a short window is regularly cleared by ordinary oscillation.
And because neither lookback can see participation. A breakout on almost no trading counts the same as one on heavy volume in a price-only rule, and those do not behave alike.
The original data
Momentum trading appears in 82 titles at a median of 6,167 views across 70 channels. Set beside that, position trading appears in 48 titles at a median of 3,115 views, from 39 channels.
A hundred and twenty-eight videos between them, since two titles name both. These two describe the approach with the strongest long-run academic support in the whole style group and together they draw less than a fifth of the coverage scalping gets — 709 videos at nearly four times the median audience.
On the chart above the instinct says no and the measured continuation says otherwise. That gap between what feels expensive and what keeps going is the entire content of the momentum idea.
When it fails
The characteristic failure is pairing a momentum entry with a fixed target. The edge’s return comes from a small number of moves that run much further than expected, and a target closes exactly those at a planned number while leaving the losers at full size. The record then shows a long series of trades that were correct and small, and the strategy underperforms a simple hold without any single decision looking wrong — because the mistake is structural rather than located in any particular trade. Momentum needs an exit that lets a winner run, which is why it is nearly always paired with a trailing rule.
A second failure is treating a small sample as evidence. A few dozen breakouts on one chart are pointers, not numbers to size a position from.
A third is running momentum without a condition filter, where a range produces a string of failed breakouts that look like a broken method.
A fourth is ignoring the annual drag, which removes 20.2% of a thirty-year pot at 75 basis points whatever the entry rule.
And a fifth is abandoning the approach during a long wait. The S&P 500 once went 7.5 years, from its January 1973 peak to July 1980, without a new record close, and a wait like that is indistinguishable from failure while you are inside it.
Related
Position trading covers the long holding period. Momentum trading covers the continuation edge. And trend following covers the exit rule it needs.
Momentum and a long holding period are the combination with the most documented support and the least attention in this corpus. The uncomfortable part is unchanged at any horizon — you are buying the thing that has already gone up, which never feels like a good price.
— Michael Whitman
This page is educational, not financial advice. Test every idea on your own charts before risking money.