ATR is one of the main indicators we use to measure volatility. When the market starts to consolidate or does not rise, ATR will be at a relatively low position. However, the classic ATR formula does not consider that when the price changes at a logarithmic level, the ATR value will also change significantly. Therefore, I divide the calculated ATR value by the closing price to get an amplitude ratio index. The adjusted indicator can well reflect the level of volatility. For example, the volatility of BTC reached an unprecedented low in January this year, which means that there will be a significant outbreak after breaking through the consolidation range. The configuration of the breakthrough order will be an excellent choice.