Momentum (MTM)
The Momentum indicator is the plainest measure of momentum: today's price versus N periods ago — whatever changed is the momentum, with no smoothing or decoration.
What it is
Momentum (MTM) computes the ratio of the current close to the close N periods ago (MT5 convention: MOM = Close ÷ Close(N) × 100). It is the rawest momentum measure — unweighted, unsmoothed, unbounded — directly answering "how much has price changed over these N bars". The 100 line is the pivot: above 100 means price is higher than N periods ago (positive momentum), below means lower. Every sophisticated momentum tool (MACD, RSI, ROC) is an improved descendant of this idea.
Origin
Momentum thinking predates modern technical analysis — the empirical "prices trend" literature goes back to mid-20th-century academic work (the 1960s–70s momentum-effect studies became a cornerstone of quantitative investing). As an indicator it ships in its rawest form everywhere; MT5 uses the ratio-times-100 convention (percentage momentum), while other platforms use the difference convention (close − close N ago).
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The MT5 convention:
MT5's ratio form reads directly as a percentage (110 = 10% above N periods ago). The difference form is intuitive in currency units but incomparable across instruments — MT5's choice is the more scientific one. Raw momentum is unsmoothed; in practice traders overlay an MA on it to read the trend of momentum.
Worked example
Understanding the ratio form with one example:
- Fourteen days ago the close was 80; today it is 88.
- MOM = 88 ÷ 80 × 100 = 110.
- Read: price is "10% above where it was 14 days ago" — the reading is literally the percentage momentum.
The reading is self-normalizing and cross-comparable (a 110 on an $80 stock and a 110 on a $4,000 index mean the same percentage move) — a real advantage over the difference form. The weakness is equally plain: no smoothing at all, so one big bar throws it far.
How to read it
Reading around the 100 pivot:
| Range | Common interpretation |
|---|---|
| MOM > 100 and rising | Positive momentum strengthening — trend healthy |
| MOM > 100 but flattening | Price may still rise, but the gain versus N periods ago is narrowing — fading momentum |
| MOM = 100 | Price exactly flat versus N periods ago — the midpoint |
| MOM < 100 but recovering | Still below N periods ago, but the loss is narrowing — downtrend momentum fading |
| MOM/price divergence | Price new high without a MOM new high — N-period momentum exhaustion, an important early warning |
Crosses and extremes are noisy precisely because MOM is unsmoothed — it works best as a "background momentum" read (how strong is now vs N ago), not as a precise trigger. For signal quality, look at its improved descendants (RSI/MACD/ROC).
Common signals & usage
Crossing the 100 pivot
MOM crossing above 100 = price stronger on the N-period scale; quality improves with a trend filter (e.g. MA200).
Trendlines on MOM itself
Draw trendlines on MOM — MOM breaking its own trendline often leads the price breakout (momentum leads).
Divergence
Price new high without a MOM new high — the plainest top divergence (the ancestor of all momentum divergences).
Reversion from extremes
MOM spiking to a historical extreme (e.g. ±20%) then reverting toward 100 — raw momentum mean-reversion.
Limitations & common mistakes
- No smoothing cuts both ways: one gapping bar throws MOM out of range — as a continuous signal source it gets faked constantly; as background context it shines.
- The window choice is everything: 14-period and 30-period momentum can contradict (short negative, long positive = pullback vs regime change) — read multiple windows together.
- Cross-platform conventions differ: MT5 is ratio×100; others use differences or ROC — values do not compare directly.
- No confirmation after divergence: MOM divergences come earlier and more often than RSI's — early means more opportunity and more fakes; wait for price confirmation.
- Gaps distort: earnings/overnight gaps make MOM jump — for gap-prone instruments prefer smoothed momentum (RSI/MACD).
Momentum in MT5
Momentum is a built-in MT5 oscillator (single line). The MQL5 function for programmatic use is iMomentum:
| MQL5 function | iMomentum() |
| Default period | mom_period=14 |
| Convention | Close ÷ Close(N) × 100 (ratio form) |
| Pivot | 100.00 (add a level line manually) |
| Display window | Sub-window |
iMomentum returns ratio-form readings (pivot 100). For the difference form or ROC (rate of change), convert from iMomentum or compute from closes — ROC = MOM − 100 (percentage change). The 100 pivot line must be added manually in the levels tab.
Behavior across timeframes
15-minute
Noise-dominated — occasionally useful as momentum confirmation during breakouts only
1-hour / 4-hour
A practical background-momentum window; divergences start to carry value
Daily
The classic home: 14-period MOM pivot crosses and divergences are most used here
Weekly
12-week MOM is a cousin of the academic 12-month momentum factor — the standard long-cycle momentum ruler
Indicator combinations
Common pairings for Momentum:
- With MA: the MA sets trend, MOM reads background momentum strength — momentum fading inside a trend suggests trimming. MA
- With RSI: RSI is smoothed, normalized relative momentum — MOM sees the raw scale, RSI the normalized one; verify divergences on both. RSI
- With MACD: MACD is momentum of averages, MOM is momentum of price — a joint divergence of both is the most credible. MACD
FAQ
Q What does a Momentum reading of 110 mean?
Under MT5's convention, MOM = price now ÷ price N ago × 100 — so 110 means price is 10% above where it was 14 periods ago. The reading is literally percentage momentum, pivoting at 100. That self-normalization is the ratio form's advantage: directly comparable across instruments and price levels.
Q Are Momentum, ROC and MTM the same thing?
Three conventions of one idea: MTM (difference) = close − close(N); Momentum (MT5) = ratio × 100; ROC (rate of change) = (close ÷ close(N) − 1) × 100 = MOM − 100. Identical shapes — only the pivot (0 or 100) and units differ.
Q How is Momentum different from RSI?
MOM is raw, unprocessed momentum (no smoothing, no normalization, unbounded); RSI is its refined descendant (gain/loss ratio, Wilder smoothing, bounded 0–100). MOM flags turns earlier but noisier; RSI is steadier but lags — MOM divergences typically lead RSI's by half a step.
Q Why does MOM produce so many fake signals?
Because nothing is smoothed — every bar's change flows straight into the reading. That is not a defect but the definition of "raw": RSI and MACD were invented precisely to fix MOM's noise. Use MOM for background context and multi-window comparison, not as a trigger.
Q How do I add Momentum in MT5?
Menu: Insert → Indicators → Oscillators → Momentum, or drag it from the Navigator onto a sub-window. Default period 14 — add a 100.00 level line manually for easier reading.
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