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Pivot points and why they blur at tick scale

Pivot points are calculated from the previous day's high, low, and close. They produce levels that many traders watch. At daily scale, the logic is reasonable: a market remembers yesterday's extremes.

At scalping scale, they have problems. The precision is false. A level at 1.08472 gets treated as a line, yet the market treats it as a zone several pips wide. A touch, a spike through, and a reversal can all happen within the same zone, and none of the three is meaningful.

Some pivots coincide with levels many others watch, so reactions occur. Those are probably a result of crowd attention, not of anything inherent in the formula.

A fair test: mark pivots on historical charts and measure how often price reverses within 2 pips of them compared with random levels. If there's no difference, the line is decoration.

Do pivot levels show any measurable reaction on tick data for the pairs traded here?

I did a version of that test on EURUSD and GBPUSD tick data a while back, comparing the daily pivot and the first support and resistance levels against levels placed at random distances from the open. The honest result was that the main pivot showed a slight edge in reactions on EURUSD during London, maybe a few percentage points more reversals within 2 pips than the random lines. The outer levels were indistinguishable from noise.

What I took from that is roughly what you suggest, that any reaction is crowd attention rather than the formula. It also explained why the effect was stronger at busy hours and almost vanished in Asia. Fewer eyes, less reaction.

In practice I still keep the main pivot on the chart, but only as a zone around 3 to 4 pips wide, and I never use it on its own. If it lines up with the previous day high or the Asian range edge I pay attention. If it floats in empty space, I treat it as a line somebody drew and nothing more.