Choosing the Impulse Before You Draw Fibonacci

Most messy Fibonacci sets come from an impulsive urge to draw. The tool is ready; the swing is not.

A defendable impulse

An impulse for retracement planning is a directional leg that:

1. Clears a prior structure high or low with a close, not only a wick
2. Holds for at least a few bars on your trading timeframe without immediate full retrace
3. Leaves a clear origin candle you can point to without debating neighbors

If you cannot explain the origin in one sentence, postpone the fib.

Noise swings

Inside bars, one-candle spikes, and overlapping ranges rarely deserve anchors. In the workshop we strike them in red on paper before anyone opens the Fibonacci tool. That habit saves time on live charts when volatility expands during the Korea cash open.

Practical check

Print the last forty bars of your instrument. Circle candidate origins. Keep at most two. Only then plot ratios. Your planning sheet should name the chosen swing explicitly — “H4 impulse from 12 May low to 19 May high” — so a later you can audit the decision.