Technical analysis

EMA trend strength (50/200)

How far above or below the 50-day average sits relative to the 200-day one, as a proportion.

Why it matters

It's the measurable version of the famous 50-day / 200-day crossover: instead of a binary alert when they cross, it gives the continuous distance between them. Positive means an established uptrend; negative, a downtrend. And because it's divided by the 200-day average it's dimensionless, so — unlike the MACD line — it CAN be compared between 2013 and 2026.

Build it yourself

Drag the two averages. Notice the signal is the same at 2016 or 2026 prices as long as the proportion between them doesn't change — that's what makes this indicator comparable.

Strength = (50-day average − 200-day average) ÷ 200-day average
Trend strength

The same figure as a percentage:

Illustrative example numbers for practice — not real data.

How it's calculated, step by step

  1. Two exponential averages of price are computed: a 50-period one and a 200-period one.
  2. Strength = (50-day average − 200-day average) ÷ 200-day average. The first value appears from day 200 onward.
Lagging signal / confirmation. It's the most relevant technical indicator in this category, but not for what it says: when the project's research tested Ichimoku, Donchian, SuperTrend, ADX and company, several of them turned out to overlap between 70% and 81% with this one — that is, they were this same signal under another name. That was its practical value: a yardstick for discarding duplicates. As a signal on its own it's slow by construction (a 200-day average can't be fast) and it did not beat buy-and-hold.

Chart

This is real Bitcoin data, computed from the blockchain — not the illustrative example above.

Data last updated on 2026-09-09.

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