Trend strength

Also called Trend intensity, Directional strength

Trend strength is how forcefully and steadily price moves in one direction. Traders often measure it with the ADX indicator: readings above 25 point to a strong trend, and readings below 20 point to a weak or sideways market.

Trend strength on a real EURUSD H1 MT5 chart. 1: ADX rises above 25 with +DI above -DI: strong uptrend; 2: the trend keeps going

Knowing the direction is only half the job. Trend strength tells you whether a dip is a chance to join the move or the start of a range that will chop up your stop. It also tells you when to stop trading the trend at all.

How to spot a strong trend: the identification checklist

Check these in order, then count the checks that pass. 5–6 = strong, trade pullbacks. 3–4 = forming, watch only. 0–2 = no trend, skip trend trades. You cannot score Strong unless check 4 (ADX above 25 and rising) passes.

Structure: price makes clear higher highs and higher lows in an uptrend, or lower highs and lower lows in a downtrend.
Shallow pullbacks: price retraces less than half of the last swing before it pushes on.
Candle bodies: candles that move with the trend have bigger bodies than candles that move against it.
ADX above 25 and rising. ADX (Average Directional Index) is a line from 0 to 100. It measures how strong a move is, not which way it goes.
Directional lines apart: +DI measures buying pressure and -DI measures selling pressure. In a strong uptrend +DI sits well above -DI. In a strong downtrend it is the other way round.
Moving average slope: the moving average you already use (for example a 50-period average) points clearly up or down, and price stays on one side of it.

Strong uptrend structure: higher highs, higher lows, shallow pullbacks and bigger trend candlesIllustration

Illustrative values. Each pullback gives back less than half of the swing before it, and the down candles are much smaller than the up candles.

Reading ADX levels to choose your tactic

Use the ADX reading to decide which kind of trade you are allowed to take. These levels are standard textbook guides, not exact laws.

ADX reading	Status	What it usually means	What you do
Below 20	No trend	No real trend, price drifts or ranges	Skip trend trades. Range tactics or no trade
20 to 25	Forming	A trend may be forming	Watch only. Wait for confirmation. Open trades: keep, stop under the last higher low
Above 25 and rising	Strong	Strong trend in progress, with the leading DI line clearly ahead and swings still moving the same way	Trade pullbacks in the direction of the DI leader
25 to 40 and falling	Slowing	The trend is still there but losing speed	Hold open trades. No new entries until ADX rises again
Above 40 and turning down, or above 40 and flat while the DI gap shrinks	Weakening	A strong trend is losing pace	No new entries. Hold open trades with tighter stops
Any reading, if the DI lines cross or price closes beyond the last higher low (lower high in a downtrend)	Broken	The condition you entered on is gone	Close open trend trades. No new ones

Use the table for the ADX status; you still need 5–6 checklist passes before you trade.

In the illustrative chart below, ADX stays under 20 while the market moves sideways. It climbs through 25 as the trend gets going. Here ADX tops out near 36 and then turns down as the push stalls, so this turn matches the Slowing row (25 to 40 and falling), not the Weakening row above 40. Watch the gap between +DI and -DI: it widens as ADX climbs past 25. Near the top, the gap starts narrowing first, and ADX turns down soon after.

ADX, +DI and -DI as a sideways market turns into a strong uptrend, then stalls

Illustrative values. ADX crosses 25 as the gap between +DI and -DI widens. The gap starts narrowing first, and ADX turns down soon after. Once the trend starts, the DI lines do not cross again; in the range they tangle around each other.

One misread is very common. A falling ADX does not mean price is reversing. ADX dropping from 36 to 29 only says the move is slowing. As long as it stays above 25 and the DI lines have not crossed, the trend is still there.

The EURUSD 1-hour example, marker by marker

The chart at the top of the page is a past example from the EURUSD 1-hour chart. It shows what happened then. It is not a prediction.

Marker 1 (2026.09.03 10:00, 1.16019): ADX(14) rose above 25 to 28.1. +DI was 31.6 and -DI was 9.4. That is a gap of 22.2 points (31.6 − 9.4), so buyers were clearly in control. The ADX side of a Strong reading was all there: ADX above 25, ADX rising, and a wide DI gap.

Marker 2 (2026.09.03 19:00, 1.16411): nine candles later, the trend was still going and price was higher. Measured from the 10:00 close (1.16041), price rose 37 pips to the 19:00 high (1.16411). Marker 1 is drawn at that candle's low (1.16019), which is why the two markers are about 39 pips apart.

Notice what the reading did not do. It did not call the top or give a target. It told you the trend was worth trading in its direction during that window. The markers show the strength condition only, not a trade entry, so do not try to place the pullback setup below on this chart.

Trading a strong trend: a pullback setup with stop and target

The setup is simple. Check these entry conditions first:

ADX above 25 and rising.
The leading DI line clearly ahead and pointing your way.
Higher lows (or lower highs) still intact.
The checklist scores 5–6 (Strong).

Then wait for a pullback toward a recent swing level or a moving average. Enter when a candle closes back in the trend direction. Put the stop beyond the pullback low (or high in a downtrend) and set your size from 1% risk. Aim for at least twice your risk.

Strong-trend pullback setup: entry on a close back in the trend, stop beyond the pullback low, target at twice the risk

Illustrative values. The stop goes beyond the pullback low, and the target is at least twice as far from entry as the stop.

Here is an illustrative example with round numbers. You have a $10,000 account and risk 1% per trade. On EURUSD the stop sits 25 pips below entry, and one standard lot (100,000 units) is worth $10 per pip.

Position size and target for a strong-trend pullback trade

Risk in money$10,000 × 1%= $100

Lots$100 ÷ (25 × $10)= 0.40

Target distance at 2 × risk25 pips × 2= 50 pips

Order size0.40 lots, 25-pip stop, 50-pip t

If ADX drops under 20, the DI lines cross, or price closes below the last higher low (above the last lower high in a downtrend), close the trade by hand. The reason you entered no longer holds. Between 20 and 25, keep the trade but move the stop under the last higher low. Never add to a position just because ADX keeps climbing. Add only on a new pullback that holds.

When trend strength helps and when to avoid it

Works best:

On liquid pairs during active sessions.
After a clear breakout.
When the 1-hour and 4-hour charts agree.

Avoid it:

In the minutes around major news, when ADX can jump on a single spike.
In thin holiday markets.
Right after a long range, when ADX is still catching up.

Pros	Cons
Tells you which tactic fits right now (trend or range)	ADX lags, so it confirms a trend after it has started
Same rules on any pair or timeframe you chart	Gives no entry price, stop or target by itself
Rules are clear numbers, easy to apply the same way every time	Readings differ by timeframe: the 1-hour chart can be strong while the 4-hour chart is flat
Keeps you out of choppy markets that eat stops	Falls during healthy pauses, which can shake you out early

FAQ

What ADX period should I use for trend strength?

14 is the most common setting and the one used in the example above. A shorter period reacts faster but gives more false readings. A longer period is smoother but lags more.

Can price trend while ADX is below 20?

Yes, price can keep making higher lows while ADX stays under 20. A slow grind with small candles keeps the DI lines close, so ADX stays low. Treat it as an unconfirmed trend, not a strong one, and score it with the checklist.