Volatility clusters even on a one-minute scale

[Amanhasnoname]

Large moves tend to follow large moves, and quiet stretches tend to follow quiet stretches. That clustering is well known on daily charts, but it also shows up in minute data.

A single spike often signals more to come over the next several bars. Ranges stay elevated for a while, then decay gradually. Strategies that adjust position size or targets to current volatility use this implicitly.

For scalpers, the practical effect is simple. After a burst of activity, fixed targets and stops may be too small for the new regime. A 5 pip stop that suited quiet conditions gets hit by routine noise during a volatile stretch.

Measuring recent range, such as the average of the last 10 or 20 bars, and scaling stops and targets to it keeps the risk-to-reward balance steady. A volatility-adjusted approach is not complicated, and it usually beats fixed numbers.

The opposite also matters. After a long quiet stretch, a breakout can come abruptly, and tight stops may suit that environment better.

Is a fixed stop used, or does it adapt to recent volatility?