Responsive ADX (RADX)

Introducing the new Responsive ADX (RADX), running with a (length = 9) and exactly how it differs from the standard built-in ADX you see on TradingView chart.

This indicator is still a true ADX at its core — it measures trend strength from 0 to 100 and uses the classic +DI and –DI lines to show direction — but it has been carefully "tuned" to react noticeably faster while staying smooth and usable. With the length set to 9, it is one of the most responsive versions you can run without turning into noise.

How it behaves differently from the normal (Wilder) ADX

Normal ADX is lagging, now this version gives you the same trend-strength reading 4–8 bars earlier than the built-in ADX. On a daily chart that can easily be 4–8 calendar days of earlier warning. On a 4-hour chart it’s 16–32 hours earlier. That head-start is the whole point.

The ADX line rises and falls much quicker.
When a new trend actually starts, you will often see this Fast ADX cross above 18–20 while the built-in ADX is still sleeping below 15. Conversely, when a trend dies, this version drops faster, so you’re not left holding a dead trade for an extra week.

The +DI and –DI lines are almost identical to the original, but lightly smoothed with a 5-period EMA (you can turn this off). This makes the DI crossovers cleaner and reduces whipsaws without adding meaningful lag.

The final ADX smoothing uses a lightweight Hull-style technique instead of Wilder’s very slow RMA. This is the main “secret sauce” that removes roughly half the lag while keeping the line smooth and readable.

Values are realistic and tradable.
With length 9 you will typically see:
– 0–18 = flat / chop
– 15–20 = emerging trend (background starts colouring)
– 20–50 = strong trend (most people take this as confirmation)
– above 50–60 only in very powerful moves (same as normal ADX)

The aqua / purple background only appears when both conditions are met: the correct DI is on top and Fast ADX is above your chosen “weak-to-trending” level (default 18).
This prevents the background from flashing on and off in sideways markets — exactly the same logic you liked in the original Trinity ADX, but now much earlier.

In very simple terms
Think of the normal built-in ADX as a diesel truck — reliable but slow to accelerate and slow to stop. Fast Responsive ADX with length 9 is the same truck with a turbocharger — same destination and same load capacity, but it gets up to speed twice as fast and brakes earlier when the road turns.

We would recommend people who switch to this version keep the (length 9–12) because the edge in timing is obvious on the chart.

That’s it — this is a new more responsive version, still-logical ADX!